First round of solutions for exercises

bus/bus.ipynb

@@ -32,60 +32,117 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 1,
+   "execution_count": 14,
    "metadata": {},
    "outputs": [],
    "source": [
     "# variables\n",
-    "\n"
+    "got_in = (2,5,4,6)\n",
+    "got_out = (1,3,3,6)\n"
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": 2,
+   "execution_count": 15,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "[(2, 1), (5, 3), (4, 3), (6, 6)]\n",
+      "The number of stops is 4\n"
+     ]
+    }
+   ],
    "source": [
     "# 1. Calculate the number of stops.\n",
-    "\n"
+    "\n",
+    "stops=[]\n",
+    "\n",
+    "for i in range(len(got_in)):\n",
+    "    stops.append((got_in[i],got_out[i]))\n",
+    "\n",
+    "print(stops)\n",
+    "print(\"The number of stops is\", len(stops))\n"
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": 3,
+   "execution_count": 16,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "[1, 2, 1, 0]\n"
+     ]
+    }
+   ],
    "source": [
-    "# 2. Assign a variable a list whose elements are the number of passengers in each stop: \n",
+    "# 2. Assign to a variable a list whose elements are the number of passengers at each stop (in-out),\n",
     "# Each item depends on the previous item in the list + in - out.\n",
-    "\n"
+    "\n",
+    "pasg_by_stop = []\n",
+    "\n",
+    "for i in range(len(got_in)):\n",
+    "    pasg_by_stop.append(stops[i][0]-stops[i][1])\n",
+    "    \n",
+    "print(pasg_by_stop)"
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": 4,
+   "execution_count": 17,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "2\n"
+     ]
+    }
+   ],
    "source": [
     "# 3. Find the maximum occupation of the bus.\n",
-    "\n"
+    "max_pasg = max(pasg_by_stop)\n",
+    "\n",
+    "print(max_pasg)\n"
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": 5,
+   "execution_count": 19,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Standard Deviation of the occupation of bus is 0.816496580927726\n",
+      "The average occupation of the bus is 1.0\n"
+     ]
+    }
+   ],
    "source": [
     "# 4. Calculate the average occupation. And the standard deviation.\n",
-    "\n"
+    "\n",
+    "pasg_mean = sum(pasg_by_stop)/len(pasg_by_stop)\n",
+    "\n",
+    "import statistics \n",
+    "from statistics import stdev \n",
+    "\n",
+    "pasg_stdev = stdev(pasg_by_stop)\n",
+    "\n",
+    "print(\"Standard Deviation of the occupation of bus is\", pasg_stdev )\n",
+    "print(\"The average occupation of the bus is\", pasg_mean)\n"
    ]
   },
   {
-   "cell_type": "code",
-   "execution_count": null,
+   "cell_type": "markdown",
    "metadata": {},
-   "outputs": [],
    "source": []
   }
  ],
@@ -105,7 +162,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.7.2"
+   "version": "3.7.3"
   }
  },
  "nbformat": 4,

bus/bus_exercise.py

@@ -0,0 +1,69 @@
+#%% Change working directory from the workspace root to the ipynb file location. Turn this addition off with the DataScience.changeDirOnImportExport setting
+# ms-python.python added
+import os
+
+try:
+    os.chdir(os.path.join(os.getcwd(), "bus/.ipynb_checkpoints"))
+    print(os.getcwd())
+except:
+    pass
+#%% [markdown]
+# # Bus
+#
+# This bus has a passenger entry and exit control system to monitor the number of occupants it carries and thus detect when there is too high a capacity.
+#
+# At each stop the entry and exit of passengers is represented by a tuple consisting of two integer numbers.
+# ```
+# bus_stop = (in, out)
+# ```
+# The succession of stops is represented by a list of these tuples.
+# ```
+# stops = [(in1, out1), (in2, out2), (in3, out3), (in4, out4)]
+# ```
+#
+# ## Goals:
+# * lists, tuples
+# * while/for loops
+# * minimum, maximum, length
+# * average, standard deviation
+#
+# ## Tasks
+# 1. Calculate the number of stops.
+# 2. Assign to a variable a list whose elements are the number of passengers at each stop (in-out),
+# 3. Find the maximum occupation of the bus.
+# 4. Calculate the average occupation. And the standard deviation.
+#
+
+#%%
+# variables
+##def bus_stop (in,out)
+
+# Each item depends on the previous item in the list + in - out.
+pass_in = [2, 3, 5, 7]
+pass_out = (1, 5, 7, 8)
+max_pass = max(len(pass_in), len(pass_out))
+print(max_pass)
+print("hello")
+
+#%%
+# 1. Calculate the number of stops.
+stops = []
+i = 0
+print(stops)
+
+while i < max_pass:
+    stops.append((pass_in[i], pass_out[i]))
+
+print(stops)
+print("hello")
+#%%
+# 2. Assign a variable a list whose elements are the number of passengers in each stop:
+
+
+#%%
+# 3. Find the maximum occupation of the bus.
+
+
+#%%
+# 4. Calculate the average occupation. And the standard deviation.
+