diff --git a/.ROS-Examples-root b/.ROS-Examples-root
new file mode 100644
index 00000000..e69de29b
diff --git a/AgePeriodCohort/births.R b/AgePeriodCohort/births.R
index 1707ca52..62d42f25 100644
--- a/AgePeriodCohort/births.R
+++ b/AgePeriodCohort/births.R
@@ -24,7 +24,7 @@ savefigs <- FALSE
 
 #' #### Load packages
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 
 #' #### Load data
 births <- read.table(root("AgePeriodCohort/data","births.txt"), header=TRUE)
diff --git a/AgePeriodCohort/births.Rmd b/AgePeriodCohort/births.Rmd
index 900bdcdf..e04b7ec6 100644
--- a/AgePeriodCohort/births.Rmd
+++ b/AgePeriodCohort/births.Rmd
@@ -26,7 +26,7 @@ savefigs <- FALSE
 
 ```{r }
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 ```
 
 #### Load data
diff --git a/AgePeriodCohort/births_letter.R b/AgePeriodCohort/births_letter.R
index 273d776f..31a4b4a1 100644
--- a/AgePeriodCohort/births_letter.R
+++ b/AgePeriodCohort/births_letter.R
@@ -24,7 +24,7 @@ savefigs <- FALSE
 
 #' **Load packages**
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 
 #' **Initialize running the first part**
 #+ results='hide'
diff --git a/AgePeriodCohort/births_letter.Rmd b/AgePeriodCohort/births_letter.Rmd
index ce890642..141b8146 100644
--- a/AgePeriodCohort/births_letter.Rmd
+++ b/AgePeriodCohort/births_letter.Rmd
@@ -26,7 +26,7 @@ savefigs <- FALSE
 
 ```{r }
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 ```
 
 **Initialize running the first part**
diff --git a/Arsenic/arsenic_logistic_apc.R b/Arsenic/arsenic_logistic_apc.R
index 28cb8316..29e6d521 100644
--- a/Arsenic/arsenic_logistic_apc.R
+++ b/Arsenic/arsenic_logistic_apc.R
@@ -22,7 +22,7 @@ knitr::opts_chunk$set(message=FALSE, error=FALSE, warning=FALSE, comment=NA)
 
 #' #### Load packages
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 library("loo")
 invlogit <- plogis
diff --git a/Arsenic/arsenic_logistic_apc.Rmd b/Arsenic/arsenic_logistic_apc.Rmd
index 32705270..fbeb6622 100644
--- a/Arsenic/arsenic_logistic_apc.Rmd
+++ b/Arsenic/arsenic_logistic_apc.Rmd
@@ -24,7 +24,7 @@ knitr::opts_chunk$set(message=FALSE, error=FALSE, warning=FALSE, comment=NA)
 
 ```{r }
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 library("loo")
 invlogit <- plogis
diff --git a/Arsenic/arsenic_logistic_building.R b/Arsenic/arsenic_logistic_building.R
index 72629995..7b3f1fc9 100644
--- a/Arsenic/arsenic_logistic_building.R
+++ b/Arsenic/arsenic_logistic_building.R
@@ -24,7 +24,7 @@ savefigs <- FALSE
 
 #' #### Load packages
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 library("loo")
 invlogit <- plogis
diff --git a/Arsenic/arsenic_logistic_building.Rmd b/Arsenic/arsenic_logistic_building.Rmd
index 52e8bcd0..f4f5eb73 100644
--- a/Arsenic/arsenic_logistic_building.Rmd
+++ b/Arsenic/arsenic_logistic_building.Rmd
@@ -26,7 +26,7 @@ savefigs <- FALSE
 
 ```{r }
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 library("loo")
 invlogit <- plogis
diff --git a/Arsenic/arsenic_logistic_building_optimizing.R b/Arsenic/arsenic_logistic_building_optimizing.R
index 808696ac..6203bb58 100644
--- a/Arsenic/arsenic_logistic_building_optimizing.R
+++ b/Arsenic/arsenic_logistic_building_optimizing.R
@@ -30,7 +30,7 @@ savefigs <- FALSE
 
 #' #### Load packages
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 library("loo")
 invlogit <- plogis
diff --git a/Arsenic/arsenic_logistic_building_optimizing.Rmd b/Arsenic/arsenic_logistic_building_optimizing.Rmd
index 4f43382d..67c6266a 100644
--- a/Arsenic/arsenic_logistic_building_optimizing.Rmd
+++ b/Arsenic/arsenic_logistic_building_optimizing.Rmd
@@ -32,7 +32,7 @@ savefigs <- FALSE
 
 ```{r }
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 library("loo")
 invlogit <- plogis
diff --git a/Arsenic/arsenic_logistic_residuals.R b/Arsenic/arsenic_logistic_residuals.R
index 4b631679..a13d1226 100644
--- a/Arsenic/arsenic_logistic_residuals.R
+++ b/Arsenic/arsenic_logistic_residuals.R
@@ -24,7 +24,7 @@ savefigs <- FALSE
 
 #' #### Load packages
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 library("loo")
 invlogit <- plogis
diff --git a/Arsenic/arsenic_logistic_residuals.Rmd b/Arsenic/arsenic_logistic_residuals.Rmd
index 9e8e5c81..029194b0 100644
--- a/Arsenic/arsenic_logistic_residuals.Rmd
+++ b/Arsenic/arsenic_logistic_residuals.Rmd
@@ -26,7 +26,7 @@ savefigs <- FALSE
 
 ```{r }
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 library("loo")
 invlogit <- plogis
diff --git a/Balance/treatcontrol.R b/Balance/treatcontrol.R
index f42f5d4d..a37bf497 100644
--- a/Balance/treatcontrol.R
+++ b/Balance/treatcontrol.R
@@ -25,7 +25,7 @@ savefigs <- FALSE
 
 #' #### Load packages
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 
 #' #### Plot figures
 bell <- function(filename, mu, sd, lo, hi, ymax){
diff --git a/Balance/treatcontrol.Rmd b/Balance/treatcontrol.Rmd
index b61c1015..b6413d24 100644
--- a/Balance/treatcontrol.Rmd
+++ b/Balance/treatcontrol.Rmd
@@ -27,7 +27,7 @@ savefigs <- FALSE
 
 ```{r }
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 ```
 
 #### Plot figures
diff --git a/Beauty/beauty.R b/Beauty/beauty.R
index 04a243d7..6b06b513 100644
--- a/Beauty/beauty.R
+++ b/Beauty/beauty.R
@@ -28,7 +28,7 @@ knitr::opts_chunk$set(message=FALSE, error=FALSE, warning=FALSE, comment=NA)
 
 #' #### Load packages
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 library("ggplot2")
 library("bayesplot")
diff --git a/Beauty/beauty.Rmd b/Beauty/beauty.Rmd
index b418a166..78e832ba 100644
--- a/Beauty/beauty.Rmd
+++ b/Beauty/beauty.Rmd
@@ -30,7 +30,7 @@ knitr::opts_chunk$set(message=FALSE, error=FALSE, warning=FALSE, comment=NA)
 
 ```{r }
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 library("ggplot2")
 library("bayesplot")
diff --git a/CausalDiagram/diagrams.R b/CausalDiagram/diagrams.R
index 2056081b..81e8face 100644
--- a/CausalDiagram/diagrams.R
+++ b/CausalDiagram/diagrams.R
@@ -24,7 +24,7 @@ savefigs <- FALSE
 
 #' #### Load packages
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 
 #' #### Plot causal diagram
 #+ eval=FALSE, include=FALSE
diff --git a/CausalDiagram/diagrams.Rmd b/CausalDiagram/diagrams.Rmd
index e893df59..21f94049 100644
--- a/CausalDiagram/diagrams.Rmd
+++ b/CausalDiagram/diagrams.Rmd
@@ -26,7 +26,7 @@ savefigs <- FALSE
 
 ```{r }
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 ```
 
 #### Plot causal diagram
diff --git a/CentralLimitTheorem/heightweight.R b/CentralLimitTheorem/heightweight.R
index eaec6169..4994fa03 100644
--- a/CentralLimitTheorem/heightweight.R
+++ b/CentralLimitTheorem/heightweight.R
@@ -25,7 +25,7 @@ savefigs <- FALSE
 
 #' #### Load packages
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 
 #' #### Summary data of height and weight distributions of women and men
 height_counts_women <- c(80,107,296,695,1612,2680,4645,8201,9948,11733,10270,9942,6181,3990,2131,1154,245,257,0,0,0,0)*10339/74167
diff --git a/CentralLimitTheorem/heightweight.Rmd b/CentralLimitTheorem/heightweight.Rmd
index abfc1bda..f61242dc 100644
--- a/CentralLimitTheorem/heightweight.Rmd
+++ b/CentralLimitTheorem/heightweight.Rmd
@@ -27,7 +27,7 @@ savefigs <- FALSE
 
 ```{r }
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 ```
 
 #### Summary data of height and weight distributions of women and men
diff --git a/Childcare/childcare.R b/Childcare/childcare.R
index 43503c87..4dd96185 100644
--- a/Childcare/childcare.R
+++ b/Childcare/childcare.R
@@ -24,7 +24,7 @@ savefigs <- FALSE
 
 #' #### Load packages
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstan")
 library("arm")
 library("rstanarm")
diff --git a/Childcare/childcare.Rmd b/Childcare/childcare.Rmd
index bd98bcc1..fda56929 100644
--- a/Childcare/childcare.Rmd
+++ b/Childcare/childcare.Rmd
@@ -26,7 +26,7 @@ savefigs <- FALSE
 
 ```{r }
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstan")
 library("arm")
 library("rstanarm")
diff --git a/Congress/congress.R b/Congress/congress.R
index 6c1e1200..51c63b2c 100644
--- a/Congress/congress.R
+++ b/Congress/congress.R
@@ -24,7 +24,7 @@ savefigs <- FALSE
 
 #' #### Load packages
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 
 #' #### Load data
diff --git a/Congress/congress.Rmd b/Congress/congress.Rmd
index a4eec41f..0ea36d36 100644
--- a/Congress/congress.Rmd
+++ b/Congress/congress.Rmd
@@ -26,7 +26,7 @@ savefigs <- FALSE
 
 ```{r }
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 ```
 
diff --git a/Coop/riverbay.R b/Coop/riverbay.R
index 85f4e995..84d5ed0a 100644
--- a/Coop/riverbay.R
+++ b/Coop/riverbay.R
@@ -24,7 +24,7 @@ savefigs <- FALSE
 
 #' #### Load packages
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 
 #' #### Load data
 data <- read.table(root("Coop/data","Riverbay.csv"), header=FALSE, sep=",")
diff --git a/Coop/riverbay.Rmd b/Coop/riverbay.Rmd
index 1cac5eb6..01a511b9 100644
--- a/Coop/riverbay.Rmd
+++ b/Coop/riverbay.Rmd
@@ -26,7 +26,7 @@ savefigs <- FALSE
 
 ```{r }
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 ```
 
 #### Load data
diff --git a/Coverage/coverage.R b/Coverage/coverage.R
index ca03b7f7..16c4cf5e 100644
--- a/Coverage/coverage.R
+++ b/Coverage/coverage.R
@@ -24,7 +24,7 @@ savefigs <- FALSE
 
 #+ eval=FALSE, include=FALSE
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 
 #' #### Simulate
 n_rep <- 100
diff --git a/Coverage/coverage.Rmd b/Coverage/coverage.Rmd
index 6cd476fa..3c428e28 100644
--- a/Coverage/coverage.Rmd
+++ b/Coverage/coverage.Rmd
@@ -24,7 +24,7 @@ savefigs <- FALSE
 ```
 ```{r eval=FALSE, include=FALSE}
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 ```
 
 #### Simulate
diff --git a/CrossValidation/crossvalidation.R b/CrossValidation/crossvalidation.R
index 004bc869..24ce26ed 100644
--- a/CrossValidation/crossvalidation.R
+++ b/CrossValidation/crossvalidation.R
@@ -24,7 +24,7 @@ savefigs <- FALSE
 
 #' #### Load packages
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 library("loo")
 library("ggplot2")
diff --git a/CrossValidation/crossvalidation.Rmd b/CrossValidation/crossvalidation.Rmd
index 15f3d14c..2e98c423 100644
--- a/CrossValidation/crossvalidation.Rmd
+++ b/CrossValidation/crossvalidation.Rmd
@@ -26,7 +26,7 @@ savefigs <- FALSE
 
 ```{r }
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 library("loo")
 library("ggplot2")
diff --git a/Death/polls.R b/Death/polls.R
index 423de672..5bd66e40 100644
--- a/Death/polls.R
+++ b/Death/polls.R
@@ -24,7 +24,7 @@ savefigs <- FALSE
 
 #' #### Load packages
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("ggplot2")
 theme_set(bayesplot::theme_default(base_family = "sans"))
 
diff --git a/Death/polls.Rmd b/Death/polls.Rmd
index b3e5e77c..eae17d28 100644
--- a/Death/polls.Rmd
+++ b/Death/polls.Rmd
@@ -26,7 +26,7 @@ savefigs <- FALSE
 
 ```{r }
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("ggplot2")
 theme_set(bayesplot::theme_default(base_family = "sans"))
 ```
diff --git a/Earnings/earnings_bootstrap.R b/Earnings/earnings_bootstrap.R
index 9840fa7d..d06faa23 100644
--- a/Earnings/earnings_bootstrap.R
+++ b/Earnings/earnings_bootstrap.R
@@ -22,7 +22,7 @@ knitr::opts_chunk$set(message=FALSE, error=FALSE, warning=FALSE, comment=NA)
 
 #' #### Load packages
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 
 #' #### Load data
 earnings <- read.csv(root("Earnings/data","earnings.csv"))
diff --git a/Earnings/earnings_bootstrap.Rmd b/Earnings/earnings_bootstrap.Rmd
index 870ff6e4..9ab086ce 100644
--- a/Earnings/earnings_bootstrap.Rmd
+++ b/Earnings/earnings_bootstrap.Rmd
@@ -24,7 +24,7 @@ knitr::opts_chunk$set(message=FALSE, error=FALSE, warning=FALSE, comment=NA)
 
 ```{r }
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 ```
 
 #### Load data
diff --git a/Earnings/earnings_compound.R b/Earnings/earnings_compound.R
index dcf47003..27f25b57 100644
--- a/Earnings/earnings_compound.R
+++ b/Earnings/earnings_compound.R
@@ -22,7 +22,7 @@ knitr::opts_chunk$set(message=FALSE, error=FALSE, warning=FALSE, comment=NA)
 
 #' #### Load packages
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 library("ggplot2")
 library("bayesplot")
diff --git a/Earnings/earnings_compound.Rmd b/Earnings/earnings_compound.Rmd
index 80314a75..30cdf42f 100644
--- a/Earnings/earnings_compound.Rmd
+++ b/Earnings/earnings_compound.Rmd
@@ -24,7 +24,7 @@ knitr::opts_chunk$set(message=FALSE, error=FALSE, warning=FALSE, comment=NA)
 
 ```{r }
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 library("ggplot2")
 library("bayesplot")
diff --git a/Earnings/earnings_regression.R b/Earnings/earnings_regression.R
index fc4ec62e..6669128b 100644
--- a/Earnings/earnings_regression.R
+++ b/Earnings/earnings_regression.R
@@ -24,7 +24,7 @@ savefigs <- FALSE
 
 #' #### Load packages
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 library("ggplot2")
 library("bayesplot")
diff --git a/Earnings/earnings_regression.Rmd b/Earnings/earnings_regression.Rmd
index c28d48c0..30619518 100644
--- a/Earnings/earnings_regression.Rmd
+++ b/Earnings/earnings_regression.Rmd
@@ -26,7 +26,7 @@ savefigs <- FALSE
 
 ```{r }
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 library("ggplot2")
 library("bayesplot")
diff --git a/Earnings/height_and_weight.R b/Earnings/height_and_weight.R
index d2f04d40..fc6be860 100644
--- a/Earnings/height_and_weight.R
+++ b/Earnings/height_and_weight.R
@@ -22,7 +22,7 @@ knitr::opts_chunk$set(message=FALSE, error=FALSE, warning=FALSE, comment=NA)
 
 #' #### Load packages
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 
 #' #### Load data
diff --git a/Earnings/height_and_weight.Rmd b/Earnings/height_and_weight.Rmd
index a0309eb3..21b2a01d 100644
--- a/Earnings/height_and_weight.Rmd
+++ b/Earnings/height_and_weight.Rmd
@@ -24,7 +24,7 @@ knitr::opts_chunk$set(message=FALSE, error=FALSE, warning=FALSE, comment=NA)
 
 ```{r }
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 ```
 
diff --git a/ElectionsEconomy/bayes.R b/ElectionsEconomy/bayes.R
index 7b4dcc2e..ae4f7b22 100644
--- a/ElectionsEconomy/bayes.R
+++ b/ElectionsEconomy/bayes.R
@@ -24,7 +24,7 @@ savefigs <- FALSE
 
 #' #### Load packages
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 
 #' ## Calculations
 #'
diff --git a/ElectionsEconomy/bayes.Rmd b/ElectionsEconomy/bayes.Rmd
index 71959993..e81dd1be 100644
--- a/ElectionsEconomy/bayes.Rmd
+++ b/ElectionsEconomy/bayes.Rmd
@@ -26,7 +26,7 @@ savefigs <- FALSE
 
 ```{r }
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 ```
 
 ## Calculations
diff --git a/ElectionsEconomy/hibbs.R b/ElectionsEconomy/hibbs.R
index 6ffd1d9e..ff1d3412 100644
--- a/ElectionsEconomy/hibbs.R
+++ b/ElectionsEconomy/hibbs.R
@@ -24,7 +24,7 @@ savefigs <- FALSE
 
 #' #### Load packages
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 library("arm")
 library("ggplot2")
diff --git a/ElectionsEconomy/hibbs.Rmd b/ElectionsEconomy/hibbs.Rmd
index 4f144169..71498b55 100644
--- a/ElectionsEconomy/hibbs.Rmd
+++ b/ElectionsEconomy/hibbs.Rmd
@@ -26,7 +26,7 @@ savefigs <- FALSE
 
 ```{r }
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 library("arm")
 library("ggplot2")
diff --git a/ElectionsEconomy/hibbs_coverage.R b/ElectionsEconomy/hibbs_coverage.R
index 25935de0..b84291c2 100644
--- a/ElectionsEconomy/hibbs_coverage.R
+++ b/ElectionsEconomy/hibbs_coverage.R
@@ -23,7 +23,7 @@ knitr::opts_chunk$set(message=FALSE, error=FALSE, warning=FALSE, comment=NA)
 
 #' #### Load packages
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 
 #' #### Load data
diff --git a/ElectionsEconomy/hibbs_coverage.Rmd b/ElectionsEconomy/hibbs_coverage.Rmd
index c5a19aa2..6937d901 100644
--- a/ElectionsEconomy/hibbs_coverage.Rmd
+++ b/ElectionsEconomy/hibbs_coverage.Rmd
@@ -25,7 +25,7 @@ knitr::opts_chunk$set(message=FALSE, error=FALSE, warning=FALSE, comment=NA)
 
 ```{r }
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 ```
 
diff --git a/ElectionsEconomy/hills.R b/ElectionsEconomy/hills.R
index 2f574a10..cb8a4730 100644
--- a/ElectionsEconomy/hills.R
+++ b/ElectionsEconomy/hills.R
@@ -24,7 +24,7 @@ savefigs <- FALSE
 
 #' #### Load packages
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("arm")
 library("rstanarm")
 
diff --git a/ElectionsEconomy/hills.Rmd b/ElectionsEconomy/hills.Rmd
index a72ec31e..9bedf7fc 100644
--- a/ElectionsEconomy/hills.Rmd
+++ b/ElectionsEconomy/hills.Rmd
@@ -26,7 +26,7 @@ savefigs <- FALSE
 
 ```{r }
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("arm")
 library("rstanarm")
 ```
diff --git a/ElectricCompany/electric.R b/ElectricCompany/electric.R
index 47b52504..ce6a920e 100644
--- a/ElectricCompany/electric.R
+++ b/ElectricCompany/electric.R
@@ -24,7 +24,7 @@ savefigs <- FALSE
 
 #' #### Load packages
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 invlogit <- plogis
 
diff --git a/ElectricCompany/electric.Rmd b/ElectricCompany/electric.Rmd
index 95645b98..f9c6d294 100644
--- a/ElectricCompany/electric.Rmd
+++ b/ElectricCompany/electric.Rmd
@@ -26,7 +26,7 @@ savefigs <- FALSE
 
 ```{r }
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 invlogit <- plogis
 ```
diff --git a/FrenchElection/ps_primaire.R b/FrenchElection/ps_primaire.R
index e0e915f5..64e91a74 100644
--- a/FrenchElection/ps_primaire.R
+++ b/FrenchElection/ps_primaire.R
@@ -21,7 +21,7 @@ knitr::opts_chunk$set(message=FALSE, error=FALSE, warning=FALSE, comment=NA)
 
 #' #### Load packages
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 
 #' #### Load data
 ps <- read.table(root("FrenchElection/data","ps_primaire.txt"), header=TRUE)
diff --git a/FrenchElection/ps_primaire.Rmd b/FrenchElection/ps_primaire.Rmd
index 53e4137d..d2c058ed 100644
--- a/FrenchElection/ps_primaire.Rmd
+++ b/FrenchElection/ps_primaire.Rmd
@@ -23,7 +23,7 @@ knitr::opts_chunk$set(message=FALSE, error=FALSE, warning=FALSE, comment=NA)
 
 ```{r }
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 ```
 
 #### Load data
diff --git a/Gay/gay.R b/Gay/gay.R
index 7904aaa3..55e94a5e 100644
--- a/Gay/gay.R
+++ b/Gay/gay.R
@@ -25,7 +25,7 @@ savefigs <- FALSE
 
 #' #### Load packages
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 # Enable parallel computation in stan_gamm4 used for splines and GPs
 options(mc.cores = parallel::detectCores())
diff --git a/Gay/gay.Rmd b/Gay/gay.Rmd
index 64a2c230..e1486827 100644
--- a/Gay/gay.Rmd
+++ b/Gay/gay.Rmd
@@ -27,7 +27,7 @@ savefigs <- FALSE
 
 ```{r }
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 # Enable parallel computation in stan_gamm4 used for splines and GPs
 options(mc.cores = parallel::detectCores())
diff --git a/Gay/gay_simple.R b/Gay/gay_simple.R
index 63352421..f1d25df3 100644
--- a/Gay/gay_simple.R
+++ b/Gay/gay_simple.R
@@ -24,7 +24,7 @@ savefigs <- FALSE
 
 #' #### Load packages
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 
 #' #### Load data
diff --git a/Gay/gay_simple.Rmd b/Gay/gay_simple.Rmd
index 011c6bab..527e1a80 100644
--- a/Gay/gay_simple.Rmd
+++ b/Gay/gay_simple.Rmd
@@ -26,7 +26,7 @@ savefigs <- FALSE
 
 ```{r }
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 ```
 
diff --git a/Golf/golf.R b/Golf/golf.R
index 28846127..05b6c61a 100644
--- a/Golf/golf.R
+++ b/Golf/golf.R
@@ -24,7 +24,7 @@ savefigs <- FALSE
 
 #' #### Load packages
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstan")
 rstan_options(auto_write = TRUE)
 library("rstanarm")
diff --git a/Golf/golf.Rmd b/Golf/golf.Rmd
index 9abd1ba4..c54029be 100644
--- a/Golf/golf.Rmd
+++ b/Golf/golf.Rmd
@@ -26,7 +26,7 @@ savefigs <- FALSE
 
 ```{r }
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstan")
 rstan_options(auto_write = TRUE)
 library("rstanarm")
diff --git a/HDI/hdi.R b/HDI/hdi.R
index 485e3d2d..4bb987c6 100644
--- a/HDI/hdi.R
+++ b/HDI/hdi.R
@@ -24,7 +24,7 @@ savefigs <- FALSE
 
 #' #### Load packages
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("foreign")
 library("maps")
 
diff --git a/HDI/hdi.Rmd b/HDI/hdi.Rmd
index f4597881..3fc49f27 100644
--- a/HDI/hdi.Rmd
+++ b/HDI/hdi.Rmd
@@ -26,7 +26,7 @@ savefigs <- FALSE
 
 ```{r }
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("foreign")
 library("maps")
 ```
diff --git a/HealthExpenditure/healthexpenditure.R b/HealthExpenditure/healthexpenditure.R
index ea9919bd..6f3894ec 100644
--- a/HealthExpenditure/healthexpenditure.R
+++ b/HealthExpenditure/healthexpenditure.R
@@ -27,7 +27,7 @@ library("ggplot2")
 library("bayesplot")
 theme_set(bayesplot::theme_default(base_family = "sans"))
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 
 #' #### Load data
 health <- read.table(root("HealthExpenditure/data","healthdata.txt"), header=TRUE)
diff --git a/HealthExpenditure/healthexpenditure.Rmd b/HealthExpenditure/healthexpenditure.Rmd
index bf7e1524..3641c03f 100644
--- a/HealthExpenditure/healthexpenditure.Rmd
+++ b/HealthExpenditure/healthexpenditure.Rmd
@@ -29,7 +29,7 @@ library("ggplot2")
 library("bayesplot")
 theme_set(bayesplot::theme_default(base_family = "sans"))
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 ```
 
 #### Load data
diff --git a/Helicopters/helicopters.R b/Helicopters/helicopters.R
index 6af59660..6bebe6e9 100644
--- a/Helicopters/helicopters.R
+++ b/Helicopters/helicopters.R
@@ -22,7 +22,7 @@ knitr::opts_chunk$set(message=FALSE, error=FALSE, warning=FALSE, comment=NA)
 
 #' #### Load packages
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 
 #' #### Load data
 helicopters <- read.table(root("Helicopters/data","helicopters.txt"), header=TRUE)
diff --git a/Helicopters/helicopters.Rmd b/Helicopters/helicopters.Rmd
index 400a0c18..48f61ccc 100644
--- a/Helicopters/helicopters.Rmd
+++ b/Helicopters/helicopters.Rmd
@@ -24,7 +24,7 @@ knitr::opts_chunk$set(message=FALSE, error=FALSE, warning=FALSE, comment=NA)
 
 ```{r }
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 ```
 
 #### Load data
diff --git a/Imputation/imputation.R b/Imputation/imputation.R
index 8364a70a..99019ddc 100644
--- a/Imputation/imputation.R
+++ b/Imputation/imputation.R
@@ -24,7 +24,7 @@ savefigs <- FALSE
 
 #' #### Load packages
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 
 #' #### Load data
diff --git a/Imputation/imputation.Rmd b/Imputation/imputation.Rmd
index 83e1888a..47264464 100644
--- a/Imputation/imputation.Rmd
+++ b/Imputation/imputation.Rmd
@@ -26,7 +26,7 @@ savefigs <- FALSE
 
 ```{r }
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 ```
 
diff --git a/Imputation/imputation_gg.R b/Imputation/imputation_gg.R
index 1a93aaa4..48b6ebc0 100644
--- a/Imputation/imputation_gg.R
+++ b/Imputation/imputation_gg.R
@@ -25,7 +25,7 @@ savefigs <- FALSE
 
 #' **Load packages**
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 library("dplyr")
 library("ggplot2")
diff --git a/Imputation/imputation_gg.Rmd b/Imputation/imputation_gg.Rmd
index 92f39a08..b8d48f4c 100644
--- a/Imputation/imputation_gg.Rmd
+++ b/Imputation/imputation_gg.Rmd
@@ -27,7 +27,7 @@ savefigs <- FALSE
 
 ```{r }
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 library("dplyr")
 library("ggplot2")
diff --git a/Influence/influence.R b/Influence/influence.R
index 20a8f8a1..f8a7d24b 100644
--- a/Influence/influence.R
+++ b/Influence/influence.R
@@ -24,7 +24,7 @@ savefigs <- FALSE
 
 #' #### Load packages
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 
 #' #### Fake data
 x <- seq(2, 12, 1)
diff --git a/Influence/influence.Rmd b/Influence/influence.Rmd
index e3c62b95..3f3aeeb9 100644
--- a/Influence/influence.Rmd
+++ b/Influence/influence.Rmd
@@ -26,7 +26,7 @@ savefigs <- FALSE
 
 ```{r }
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 ```
 
 #### Fake data
diff --git a/Interactions/interactions.R b/Interactions/interactions.R
index ba045d2b..2b890ea8 100644
--- a/Interactions/interactions.R
+++ b/Interactions/interactions.R
@@ -24,7 +24,7 @@ savefigs <- FALSE
 
 #' #### Load packages
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 
 #' #### Plot interaction example figure
 #+ eval=FALSE, include=FALSE
diff --git a/Interactions/interactions.Rmd b/Interactions/interactions.Rmd
index 1bd13f24..5f489891 100644
--- a/Interactions/interactions.Rmd
+++ b/Interactions/interactions.Rmd
@@ -26,7 +26,7 @@ savefigs <- FALSE
 
 ```{r }
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 ```
 
 #### Plot interaction example figure
diff --git a/Introclass/residual_plots.R b/Introclass/residual_plots.R
index e5379f6f..03bb07eb 100644
--- a/Introclass/residual_plots.R
+++ b/Introclass/residual_plots.R
@@ -24,7 +24,7 @@ savefigs <- FALSE
 
 #' #### Load packages
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 
 #' #### Load data
diff --git a/Introclass/residual_plots.Rmd b/Introclass/residual_plots.Rmd
index aac5ca9b..6844552d 100644
--- a/Introclass/residual_plots.Rmd
+++ b/Introclass/residual_plots.Rmd
@@ -26,7 +26,7 @@ savefigs <- FALSE
 
 ```{r }
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 ```
 
diff --git a/KidIQ/kidiq.R b/KidIQ/kidiq.R
index a44439f1..fac35ecc 100644
--- a/KidIQ/kidiq.R
+++ b/KidIQ/kidiq.R
@@ -24,7 +24,7 @@ savefigs <- FALSE
 
 #' #### Load packages
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 library("ggplot2")
 library("bayesplot")
diff --git a/KidIQ/kidiq.Rmd b/KidIQ/kidiq.Rmd
index 7f57d5fe..acf582ca 100644
--- a/KidIQ/kidiq.Rmd
+++ b/KidIQ/kidiq.Rmd
@@ -26,7 +26,7 @@ savefigs <- FALSE
 
 ```{r }
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 library("ggplot2")
 library("bayesplot")
diff --git a/KidIQ/kidiq_R2.R b/KidIQ/kidiq_R2.R
index 988237d9..6dc336db 100644
--- a/KidIQ/kidiq_R2.R
+++ b/KidIQ/kidiq_R2.R
@@ -26,7 +26,7 @@ knitr::opts_chunk$set(message=FALSE, error=FALSE, warning=FALSE, comment=NA)
 
 #' #### Load packages
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 library("loo")
 library("foreign")
diff --git a/KidIQ/kidiq_R2.Rmd b/KidIQ/kidiq_R2.Rmd
index ef9f9f66..37b8e6e7 100644
--- a/KidIQ/kidiq_R2.Rmd
+++ b/KidIQ/kidiq_R2.Rmd
@@ -28,7 +28,7 @@ knitr::opts_chunk$set(message=FALSE, error=FALSE, warning=FALSE, comment=NA)
 
 ```{r }
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 library("loo")
 library("foreign")
diff --git a/KidIQ/kidiq_kcv.R b/KidIQ/kidiq_kcv.R
index 8ac1a934..35998bfe 100644
--- a/KidIQ/kidiq_kcv.R
+++ b/KidIQ/kidiq_kcv.R
@@ -22,7 +22,7 @@ knitr::opts_chunk$set(message=FALSE, error=FALSE, warning=FALSE, comment=NA)
 
 #' #### Load packages
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 library("foreign")
 # for reproducability
diff --git a/KidIQ/kidiq_kcv.Rmd b/KidIQ/kidiq_kcv.Rmd
index a5b9daa3..3f72fc67 100644
--- a/KidIQ/kidiq_kcv.Rmd
+++ b/KidIQ/kidiq_kcv.Rmd
@@ -24,7 +24,7 @@ knitr::opts_chunk$set(message=FALSE, error=FALSE, warning=FALSE, comment=NA)
 
 ```{r }
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 library("foreign")
 # for reproducability
diff --git a/KidIQ/kidiq_loo.R b/KidIQ/kidiq_loo.R
index 42a03f25..2cfc75b4 100644
--- a/KidIQ/kidiq_loo.R
+++ b/KidIQ/kidiq_loo.R
@@ -22,7 +22,7 @@ knitr::opts_chunk$set(message=FALSE, error=FALSE, warning=FALSE, comment=NA)
 
 #' #### Load packages
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 library("loo")
 library("foreign")
diff --git a/KidIQ/kidiq_loo.Rmd b/KidIQ/kidiq_loo.Rmd
index 629c899a..8898a474 100644
--- a/KidIQ/kidiq_loo.Rmd
+++ b/KidIQ/kidiq_loo.Rmd
@@ -24,7 +24,7 @@ knitr::opts_chunk$set(message=FALSE, error=FALSE, warning=FALSE, comment=NA)
 
 ```{r }
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 library("loo")
 library("foreign")
diff --git a/LogitGraphs/logitgraphs.R b/LogitGraphs/logitgraphs.R
index 12c661e3..c8841d9a 100644
--- a/LogitGraphs/logitgraphs.R
+++ b/LogitGraphs/logitgraphs.R
@@ -24,7 +24,7 @@ savefigs <- FALSE
 
 #' #### Load packages
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 options(mc.cores = parallel::detectCores())
 logit <- qlogis
diff --git a/LogitGraphs/logitgraphs.Rmd b/LogitGraphs/logitgraphs.Rmd
index 75392a09..b3676085 100644
--- a/LogitGraphs/logitgraphs.Rmd
+++ b/LogitGraphs/logitgraphs.Rmd
@@ -26,7 +26,7 @@ savefigs <- FALSE
 
 ```{r }
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 options(mc.cores = parallel::detectCores())
 logit <- qlogis
diff --git a/Mesquite/mesquite.R b/Mesquite/mesquite.R
index 73139e92..278c35d9 100644
--- a/Mesquite/mesquite.R
+++ b/Mesquite/mesquite.R
@@ -24,7 +24,7 @@ savefigs <- FALSE
 
 #' #### Load packages
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("foreign")
 library("rstanarm")
 library("loo")
diff --git a/Mesquite/mesquite.Rmd b/Mesquite/mesquite.Rmd
index d48083d2..0aad2d17 100644
--- a/Mesquite/mesquite.Rmd
+++ b/Mesquite/mesquite.Rmd
@@ -26,7 +26,7 @@ savefigs <- FALSE
 
 ```{r }
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("foreign")
 library("rstanarm")
 library("loo")
diff --git a/Metabolic/metabolic.R b/Metabolic/metabolic.R
index 28bcd008..4b9884b8 100644
--- a/Metabolic/metabolic.R
+++ b/Metabolic/metabolic.R
@@ -28,7 +28,7 @@ savefigs <- FALSE
 
 #' #### Load packages
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 
 
 #+ eval=FALSE, include=FALSE
diff --git a/Metabolic/metabolic.Rmd b/Metabolic/metabolic.Rmd
index edf56a9d..cdbf613f 100644
--- a/Metabolic/metabolic.Rmd
+++ b/Metabolic/metabolic.Rmd
@@ -30,7 +30,7 @@ savefigs <- FALSE
 
 ```{r }
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 
 
 ```
diff --git a/Mile/mile.R b/Mile/mile.R
index c712bb06..969f9c61 100644
--- a/Mile/mile.R
+++ b/Mile/mile.R
@@ -24,7 +24,7 @@ savefigs <- FALSE
 
 #' #### Load packages
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 library("ggplot2")
 theme_set(bayesplot::theme_default(base_family = "sans"))
diff --git a/Mile/mile.Rmd b/Mile/mile.Rmd
index d0db9537..81e2c637 100644
--- a/Mile/mile.Rmd
+++ b/Mile/mile.Rmd
@@ -26,7 +26,7 @@ savefigs <- FALSE
 
 ```{r }
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 library("ggplot2")
 theme_set(bayesplot::theme_default(base_family = "sans"))
diff --git a/NES/nes_linear.R b/NES/nes_linear.R
index 8401cfb3..050598fc 100644
--- a/NES/nes_linear.R
+++ b/NES/nes_linear.R
@@ -24,7 +24,7 @@ savefigs <- FALSE
 
 #' #### Load packages
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 library("foreign")
 
diff --git a/NES/nes_linear.Rmd b/NES/nes_linear.Rmd
index d154d36c..daa23fb1 100644
--- a/NES/nes_linear.Rmd
+++ b/NES/nes_linear.Rmd
@@ -26,7 +26,7 @@ savefigs <- FALSE
 
 ```{r }
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 library("foreign")
 ```
diff --git a/NES/nes_logistic.R b/NES/nes_logistic.R
index 5db91877..e0bd0064 100644
--- a/NES/nes_logistic.R
+++ b/NES/nes_logistic.R
@@ -24,7 +24,7 @@ savefigs <- FALSE
 
 #' #### Load packages
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("arm")
 library("rstanarm")
 library("foreign")
diff --git a/NES/nes_logistic.Rmd b/NES/nes_logistic.Rmd
index 09871aae..917cef31 100644
--- a/NES/nes_logistic.Rmd
+++ b/NES/nes_logistic.Rmd
@@ -26,7 +26,7 @@ savefigs <- FALSE
 
 ```{r }
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("arm")
 library("rstanarm")
 library("foreign")
diff --git a/Names/lastletters.R b/Names/lastletters.R
index 716461d5..de0c3f99 100644
--- a/Names/lastletters.R
+++ b/Names/lastletters.R
@@ -24,7 +24,7 @@ savefigs <- FALSE
 
 #' #### Load packages
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 
 #' #### Load data
 allnames <- read.csv(root("Names/data","SSA-longtail-names.csv"))
diff --git a/Names/lastletters.Rmd b/Names/lastletters.Rmd
index a2d4d66b..e6ae7989 100644
--- a/Names/lastletters.Rmd
+++ b/Names/lastletters.Rmd
@@ -26,7 +26,7 @@ savefigs <- FALSE
 
 ```{r }
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 ```
 
 #### Load data
diff --git a/Names/names.R b/Names/names.R
index 1bc4134e..826adf38 100644
--- a/Names/names.R
+++ b/Names/names.R
@@ -24,7 +24,7 @@ savefigs <- FALSE
 
 #' #### Load packages
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 
 #' #### Load data
 allnames <- read.csv(root("Names/data","SSA-longtail-names.csv"))
diff --git a/Names/names.Rmd b/Names/names.Rmd
index fbeae074..4dd0fb86 100644
--- a/Names/names.Rmd
+++ b/Names/names.Rmd
@@ -26,7 +26,7 @@ savefigs <- FALSE
 
 ```{r }
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 ```
 
 #### Load data
diff --git a/Newcomb/newcomb.R b/Newcomb/newcomb.R
index 8892e474..35ed5b28 100644
--- a/Newcomb/newcomb.R
+++ b/Newcomb/newcomb.R
@@ -24,7 +24,7 @@ savefigs <- FALSE
 
 #' #### Load packages
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 library("ggplot2")
 library("bayesplot")
diff --git a/Newcomb/newcomb.Rmd b/Newcomb/newcomb.Rmd
index 06d91c8f..e9dc1851 100644
--- a/Newcomb/newcomb.Rmd
+++ b/Newcomb/newcomb.Rmd
@@ -26,7 +26,7 @@ savefigs <- FALSE
 
 ```{r }
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 library("ggplot2")
 library("bayesplot")
diff --git a/Parabola/parabola.R b/Parabola/parabola.R
index 3ce846fd..1005dd2c 100644
--- a/Parabola/parabola.R
+++ b/Parabola/parabola.R
@@ -22,7 +22,7 @@ knitr::opts_chunk$set(message=FALSE, error=FALSE, warning=FALSE, comment=NA)
 
 #' #### Load packages
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstan")
 rstan_options(auto_write = TRUE)
 
diff --git a/Parabola/parabola.Rmd b/Parabola/parabola.Rmd
index 9ee52faf..9bc4e90f 100644
--- a/Parabola/parabola.Rmd
+++ b/Parabola/parabola.Rmd
@@ -24,7 +24,7 @@ knitr::opts_chunk$set(message=FALSE, error=FALSE, warning=FALSE, comment=NA)
 
 ```{r }
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstan")
 rstan_options(auto_write = TRUE)
 ```
diff --git a/Peacekeeping/peace.R b/Peacekeeping/peace.R
index 1f6cc1f1..4e5d3dfa 100644
--- a/Peacekeeping/peace.R
+++ b/Peacekeeping/peace.R
@@ -25,7 +25,7 @@ savefigs <- FALSE
 
 #' #### Load packages
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("foreign")
 
 #' #### Load data
diff --git a/Peacekeeping/peace.Rmd b/Peacekeeping/peace.Rmd
index f5a1356f..f1a8e1e6 100644
--- a/Peacekeeping/peace.Rmd
+++ b/Peacekeeping/peace.Rmd
@@ -27,7 +27,7 @@ savefigs <- FALSE
 
 ```{r }
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("foreign")
 ```
 
diff --git a/PearsonLee/heights.R b/PearsonLee/heights.R
index fb847391..5387f950 100644
--- a/PearsonLee/heights.R
+++ b/PearsonLee/heights.R
@@ -25,7 +25,7 @@ savefigs <- FALSE
 
 #' #### Load packages
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 library("HistData")
 
diff --git a/PearsonLee/heights.Rmd b/PearsonLee/heights.Rmd
index 112d900a..8631c332 100644
--- a/PearsonLee/heights.Rmd
+++ b/PearsonLee/heights.Rmd
@@ -27,7 +27,7 @@ savefigs <- FALSE
 
 ```{r }
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 library("HistData")
 ```
diff --git a/Pew/pew.R b/Pew/pew.R
index 094909a7..185134e5 100644
--- a/Pew/pew.R
+++ b/Pew/pew.R
@@ -24,7 +24,7 @@ savefigs <- FALSE
 
 #' #### Load packages
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("foreign")
 
 #' #### Load data
diff --git a/Pew/pew.Rmd b/Pew/pew.Rmd
index 8024bedd..63e8e65b 100644
--- a/Pew/pew.Rmd
+++ b/Pew/pew.Rmd
@@ -26,7 +26,7 @@ savefigs <- FALSE
 
 ```{r }
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("foreign")
 ```
 
diff --git a/PoissonExample/poisson_regression.R b/PoissonExample/poisson_regression.R
index a225e9f0..084e4b52 100644
--- a/PoissonExample/poisson_regression.R
+++ b/PoissonExample/poisson_regression.R
@@ -24,7 +24,7 @@ savefigs <- FALSE
 
 #' #### Load packages
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 library("MASS")
 
diff --git a/PoissonExample/poisson_regression.Rmd b/PoissonExample/poisson_regression.Rmd
index c5e7a749..14a650f5 100644
--- a/PoissonExample/poisson_regression.Rmd
+++ b/PoissonExample/poisson_regression.Rmd
@@ -26,7 +26,7 @@ savefigs <- FALSE
 
 ```{r }
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 library("MASS")
 ```
diff --git a/Pollution/pollution.R b/Pollution/pollution.R
index d7c0ccc3..ea826159 100644
--- a/Pollution/pollution.R
+++ b/Pollution/pollution.R
@@ -27,7 +27,7 @@ knitr::opts_chunk$set(message=FALSE, error=FALSE, warning=FALSE, comment=NA)
 
 #' **Load packages**
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 
 #' **Load data**
 pollution <- read.csv(root("Pollution/data","pollution.csv"))
diff --git a/Pollution/pollution.Rmd b/Pollution/pollution.Rmd
index 532ab145..a5969e06 100644
--- a/Pollution/pollution.Rmd
+++ b/Pollution/pollution.Rmd
@@ -29,7 +29,7 @@ knitr::opts_chunk$set(message=FALSE, error=FALSE, warning=FALSE, comment=NA)
 
 ```{r }
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 ```
 
 **Load data**
diff --git a/Poststrat/poststrat.R b/Poststrat/poststrat.R
index aecd6efd..59b8892d 100644
--- a/Poststrat/poststrat.R
+++ b/Poststrat/poststrat.R
@@ -48,7 +48,7 @@ knitr::opts_chunk$set(message=FALSE, error=FALSE, warning=FALSE, comment=NA)
 
 #' #### Load packages
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 
 #' ## Simulate fake data
diff --git a/Poststrat/poststrat.Rmd b/Poststrat/poststrat.Rmd
index a925ccee..60cb827c 100644
--- a/Poststrat/poststrat.Rmd
+++ b/Poststrat/poststrat.Rmd
@@ -49,7 +49,7 @@ knitr::opts_chunk$set(message=FALSE, error=FALSE, warning=FALSE, comment=NA)
 
 ````{r }
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 ````
 
diff --git a/ProbabilitySimulation/probsim.R b/ProbabilitySimulation/probsim.R
index 62613466..85ae79f3 100644
--- a/ProbabilitySimulation/probsim.R
+++ b/ProbabilitySimulation/probsim.R
@@ -24,7 +24,7 @@ savefigs <- FALSE
 
 #' #### Load packages
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 
 #' #### Simulate how many girls in 400 births?
 n_girls <- rbinom(1, 400, 0.488)
diff --git a/ProbabilitySimulation/probsim.Rmd b/ProbabilitySimulation/probsim.Rmd
index 763326eb..84c2dd42 100644
--- a/ProbabilitySimulation/probsim.Rmd
+++ b/ProbabilitySimulation/probsim.Rmd
@@ -26,7 +26,7 @@ savefigs <- FALSE
 
 ```{r }
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 ```
 
 #### Simulate how many girls in 400 births?
diff --git a/Residuals/residuals.R b/Residuals/residuals.R
index f733cc03..d88056b0 100644
--- a/Residuals/residuals.R
+++ b/Residuals/residuals.R
@@ -24,7 +24,7 @@ savefigs <- FALSE
 
 #' #### Load packages
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 
 #' ## Simple model with const term, one pre-treatment predictor, and treatment indicator
diff --git a/Residuals/residuals.Rmd b/Residuals/residuals.Rmd
index 62862ece..d957b59c 100644
--- a/Residuals/residuals.Rmd
+++ b/Residuals/residuals.Rmd
@@ -26,7 +26,7 @@ savefigs <- FALSE
 
 ```{r }
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 ```
 
diff --git a/Restaurant/restaurant.R b/Restaurant/restaurant.R
index 348a3a0f..06af39c9 100644
--- a/Restaurant/restaurant.R
+++ b/Restaurant/restaurant.R
@@ -22,7 +22,7 @@ knitr::opts_chunk$set(message=FALSE, error=FALSE, warning=FALSE, comment=NA)
 
 #' #### Load packages
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstan")
 rstan_options(auto_write = TRUE)
 
diff --git a/Restaurant/restaurant.Rmd b/Restaurant/restaurant.Rmd
index 5ed88b1c..876a75c8 100644
--- a/Restaurant/restaurant.Rmd
+++ b/Restaurant/restaurant.Rmd
@@ -24,7 +24,7 @@ knitr::opts_chunk$set(message=FALSE, error=FALSE, warning=FALSE, comment=NA)
 
 ```{r }
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstan")
 rstan_options(auto_write = TRUE)
 ```
diff --git a/RiskyBehavior/risky.R b/RiskyBehavior/risky.R
index 70037447..dbbbb7b7 100644
--- a/RiskyBehavior/risky.R
+++ b/RiskyBehavior/risky.R
@@ -30,7 +30,7 @@ savefigs <- FALSE
 
 #' **Load packages**
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 
 #' **Load data**
 risky <- read.csv(root("RiskyBehavior/data","risky.csv"))
diff --git a/RiskyBehavior/risky.Rmd b/RiskyBehavior/risky.Rmd
index d921695a..6620bb18 100644
--- a/RiskyBehavior/risky.Rmd
+++ b/RiskyBehavior/risky.Rmd
@@ -33,7 +33,7 @@ savefigs <- FALSE
 
 ```{r }
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 ```
 
 **Load data**
diff --git a/Roaches/roaches.R b/Roaches/roaches.R
index 18268287..f24b6138 100644
--- a/Roaches/roaches.R
+++ b/Roaches/roaches.R
@@ -25,7 +25,7 @@ savefigs <- FALSE
 
 #' #### Load packages
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 library("brms")
 library("loo")
diff --git a/Roaches/roaches.Rmd b/Roaches/roaches.Rmd
index 0e8e1098..98617825 100644
--- a/Roaches/roaches.Rmd
+++ b/Roaches/roaches.Rmd
@@ -27,7 +27,7 @@ savefigs <- FALSE
 
 ```{r }
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 library("brms")
 library("loo")
diff --git a/Rsquared/rsquared.R b/Rsquared/rsquared.R
index 6b58cda6..bd0bdc8f 100644
--- a/Rsquared/rsquared.R
+++ b/Rsquared/rsquared.R
@@ -53,7 +53,7 @@ savefigs <- FALSE
 
 #' #### Load packages
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 library("ggplot2")
 library("bayesplot")
diff --git a/Rsquared/rsquared.Rmd b/Rsquared/rsquared.Rmd
index a087bb18..b8579788 100644
--- a/Rsquared/rsquared.Rmd
+++ b/Rsquared/rsquared.Rmd
@@ -54,7 +54,7 @@ savefigs <- FALSE
 
 ```{r }
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 library("ggplot2")
 library("bayesplot")
diff --git a/SampleSize/simulation.R b/SampleSize/simulation.R
index 036b0c5f..b76c589c 100644
--- a/SampleSize/simulation.R
+++ b/SampleSize/simulation.R
@@ -21,7 +21,7 @@ knitr::opts_chunk$set(message=FALSE, error=FALSE, warning=FALSE, comment=NA)
 
 #' #### Load packages
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 
 #' #### Simulated data 1: predictor range (-0.5, 0.5)
diff --git a/SampleSize/simulation.Rmd b/SampleSize/simulation.Rmd
index 3700d00a..a6492bc1 100644
--- a/SampleSize/simulation.Rmd
+++ b/SampleSize/simulation.Rmd
@@ -23,7 +23,7 @@ knitr::opts_chunk$set(message=FALSE, error=FALSE, warning=FALSE, comment=NA)
 
 ```{r }
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 ```
 
diff --git a/Sesame/sesame.R b/Sesame/sesame.R
index a8049ca1..f308cae2 100644
--- a/Sesame/sesame.R
+++ b/Sesame/sesame.R
@@ -22,7 +22,7 @@ knitr::opts_chunk$set(message=FALSE, error=FALSE, warning=FALSE, comment=NA)
 
 #' #### Load packages
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 library("brms")
 
diff --git a/Sesame/sesame.Rmd b/Sesame/sesame.Rmd
index 215c572b..69ac5366 100644
--- a/Sesame/sesame.Rmd
+++ b/Sesame/sesame.Rmd
@@ -24,7 +24,7 @@ knitr::opts_chunk$set(message=FALSE, error=FALSE, warning=FALSE, comment=NA)
 
 ```{r }
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 library("brms")
 ```
diff --git a/SexRatio/sexratio.R b/SexRatio/sexratio.R
index 12d2e29d..08872e2c 100644
--- a/SexRatio/sexratio.R
+++ b/SexRatio/sexratio.R
@@ -24,7 +24,7 @@ savefigs <- FALSE
 
 #' #### Load packages
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("arm")
 library("rstanarm")
 
diff --git a/SexRatio/sexratio.Rmd b/SexRatio/sexratio.Rmd
index 40e02163..e48ae13a 100644
--- a/SexRatio/sexratio.Rmd
+++ b/SexRatio/sexratio.Rmd
@@ -26,7 +26,7 @@ savefigs <- FALSE
 
 ```{r }
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("arm")
 library("rstanarm")
 ```
diff --git a/SimpleCausal/causal.R b/SimpleCausal/causal.R
index 5150a9e0..0d1be698 100644
--- a/SimpleCausal/causal.R
+++ b/SimpleCausal/causal.R
@@ -28,7 +28,7 @@ savefigs <- FALSE
 
 #' #### Load packages
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("arm")
 # for reproducibility of simulated data
 SEED <- 1151
diff --git a/SimpleCausal/causal.Rmd b/SimpleCausal/causal.Rmd
index 32890341..903e673f 100644
--- a/SimpleCausal/causal.Rmd
+++ b/SimpleCausal/causal.Rmd
@@ -30,7 +30,7 @@ savefigs <- FALSE
 
 ```{r }
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("arm")
 # for reproducibility of simulated data
 SEED <- 1151
diff --git a/Simplest/simplest.R b/Simplest/simplest.R
index 71aad429..7d84c8e7 100644
--- a/Simplest/simplest.R
+++ b/Simplest/simplest.R
@@ -24,7 +24,7 @@ savefigs <- FALSE
 
 #' #### Load packages
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 
 #' ## Fitting a regression using a data frame in R
diff --git a/Simplest/simplest.Rmd b/Simplest/simplest.Rmd
index b441c371..cc163a40 100644
--- a/Simplest/simplest.Rmd
+++ b/Simplest/simplest.Rmd
@@ -26,7 +26,7 @@ savefigs <- FALSE
 
 ```{r }
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 ```
 
diff --git a/Simplest/simplest_lm.R b/Simplest/simplest_lm.R
index 47429eac..ad28a357 100644
--- a/Simplest/simplest_lm.R
+++ b/Simplest/simplest_lm.R
@@ -24,7 +24,7 @@ savefigs <- FALSE
 
 #' **Load packages**
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("arm")
 
 #' #### Fitting a regression using a data frame in R
diff --git a/Simplest/simplest_lm.Rmd b/Simplest/simplest_lm.Rmd
index 7f279bb6..40d787c6 100644
--- a/Simplest/simplest_lm.Rmd
+++ b/Simplest/simplest_lm.Rmd
@@ -26,7 +26,7 @@ savefigs <- FALSE
 
 ```{r }
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("arm")
 ```
 
diff --git a/Stents/stents.R b/Stents/stents.R
index a184edef..7e51fbd2 100644
--- a/Stents/stents.R
+++ b/Stents/stents.R
@@ -24,7 +24,7 @@ savefigs <- FALSE
 
 #' #### Load packages
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 
 #' #### Exercise time
 n <- c(104,90)
diff --git a/Stents/stents.Rmd b/Stents/stents.Rmd
index 85013117..b3690858 100644
--- a/Stents/stents.Rmd
+++ b/Stents/stents.Rmd
@@ -26,7 +26,7 @@ savefigs <- FALSE
 
 ```{r }
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 ```
 
 #### Exercise time
diff --git a/Storable/storable.R b/Storable/storable.R
index 6bbdbfc3..822c8360 100644
--- a/Storable/storable.R
+++ b/Storable/storable.R
@@ -25,7 +25,7 @@ savefigs <- FALSE
 
 #' #### Load packages
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstan")
 rstan_options(auto_write = TRUE)
 library("rstanarm")
diff --git a/Storable/storable.Rmd b/Storable/storable.Rmd
index 67fa8dfd..ce26fb9c 100644
--- a/Storable/storable.Rmd
+++ b/Storable/storable.Rmd
@@ -27,7 +27,7 @@ savefigs <- FALSE
 
 ```{r }
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstan")
 rstan_options(auto_write = TRUE)
 library("rstanarm")
diff --git a/Student/student.R b/Student/student.R
index 5b3ed532..a1e0addf 100644
--- a/Student/student.R
+++ b/Student/student.R
@@ -24,7 +24,7 @@ savefigs <- FALSE
 
 #' #### Load packages
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 library("rstantools")
 library("loo")
diff --git a/Student/student.Rmd b/Student/student.Rmd
index 4837e9ac..6ce442f6 100644
--- a/Student/student.Rmd
+++ b/Student/student.Rmd
@@ -26,7 +26,7 @@ savefigs <- FALSE
 
 ```{r }
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 library("rstantools")
 library("loo")
diff --git a/Unemployment/unemployment.R b/Unemployment/unemployment.R
index cdc22b90..47a2da80 100644
--- a/Unemployment/unemployment.R
+++ b/Unemployment/unemployment.R
@@ -25,7 +25,7 @@ savefigs <- FALSE
 
 #' #### Load packages
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 library("ggplot2")
 library("bayesplot")
diff --git a/Unemployment/unemployment.Rmd b/Unemployment/unemployment.Rmd
index 25fafaad..8e88c27a 100644
--- a/Unemployment/unemployment.Rmd
+++ b/Unemployment/unemployment.Rmd
@@ -27,7 +27,7 @@ savefigs <- FALSE
 
 ```{r }
 library("rprojroot")
-root<-has_dirname("ROS-Examples")$make_fix_file()
+root<-has_file(".ROS-Examples-root")$make_fix_file()
 library("rstanarm")
 library("ggplot2")
 library("bayesplot")