Dev

pynapple/core/time_series.py

@@ -2,7 +2,7 @@
 # @Author: gviejo
 # @Date:   2022-01-27 18:33:31
 # @Last Modified by:   gviejo
-# @Last Modified time: 2023-10-18 11:16:43
+# @Last Modified time: 2023-10-27 14:26:55
 
 """
 
@@ -729,7 +729,7 @@ def find_support(self, min_gap, time_units="s"):
 
         Parameters
         ----------
-        min_gap : float
+        min_gap : float or int
             minimal interval between timestamps
         time_units : str, optional
             Time units of min gap
@@ -754,6 +754,27 @@ def find_support(self, min_gap, time_units="s"):
 
         return IntervalSet(start=starts, end=ends)
 
+    def get(self, start, end, time_units="s"):
+        """Slice the time series from start to end such that all the timestamps satisfy start<=t<=end.
+
+        By default, the time support doesn't change. If you want to change the
+
+        Parameters
+        ----------
+        start : float or int
+            The start
+        end : float or int
+            The end
+        """
+        assert isinstance(start, Number), "start should be a float or int"
+        assert isinstance(end, Number), "end should be a float or int"
+        assert start < end, "Start should not precede end"
+        start, end = TsIndex.format_timestamps(np.array([start, end]), time_units)
+        time_array = self.index.values
+        idx_start = np.searchsorted(time_array, start)
+        idx_end = np.searchsorted(time_array, end, side="right")
+        return self[idx_start:idx_end]
+
 
 class TsdTensor(NDArrayOperatorsMixin, _AbstractTsd):
     """
@@ -840,9 +861,22 @@ def __repr__(self):
 
             def create_str(array):
                 if array.ndim == 1:
-                    return (
-                        "[" + array[0].__repr__() + " ... " + array[0].__repr__() + "]"
-                    )
+                    if len(array) > 2:
+                        return (
+                            "["
+                            + array[0].__repr__()
+                            + " ... "
+                            + array[-1].__repr__()
+                            + "]"
+                        )
+                    elif len(array) == 2:
+                        return (
+                            "[" + array[0].__repr__() + "," + array[1].__repr__() + "]"
+                        )
+                    elif len(array) == 1:
+                        return "[" + array[0].__repr__() + "]"
+                    else:
+                        return "[]"
                 else:
                     return "[" + create_str(array[0]) + " ...]"
 

tests/test_time_series.py

@@ -2,7 +2,7 @@
 # @Author: gviejo
 # @Date:   2022-04-01 09:57:55
 # @Last Modified by:   gviejo
-# @Last Modified time: 2023-10-18 11:18:07
+# @Last Modified time: 2023-10-29 16:19:01
 #!/usr/bin/env python
 
 """Tests of time series for `pynapple` package."""
@@ -246,6 +246,25 @@ def test_properties():
     assert tsd.ndim == 1
     assert tsd.size == 100
 
+    with pytest.raises(RuntimeError):
+        tsd.rate = 0
+
+def test_abstract_class():
+    class DummyTsd(nap.core.time_series._AbstractTsd):
+        def __init__(self):
+            super().__init__()
+
+    tsd = DummyTsd()
+    assert np.isnan(tsd.rate)
+    assert isinstance(tsd.index, nap.TsIndex)
+    assert isinstance(tsd.values, np.ndarray)
+
+    # assert tsd.__repr__() == "<class '__main__.DummyTsd'>"
+
+    with pytest.raises(IndexError):
+        tsd['a']
+
+
 ####################################################
 # General test for time series
 ####################################################
@@ -348,6 +367,22 @@ def test_restrict_inherit_time_support(self, tsd):
         np.testing.assert_approx_equal(tsd2.time_support.start[0], ep.start[0])
         np.testing.assert_approx_equal(tsd2.time_support.end[0], ep.end[0])
 
+    def test_get(self, tsd):
+        tsd2 = tsd.get(10, 20)
+        assert len(tsd2) == 11
+        np.testing.assert_array_equal(tsd2.index.values, tsd.index.values[10:21])
+        if not isinstance(tsd, nap.Ts):
+            np.testing.assert_array_equal(tsd2.values, tsd.values[10:21])
+
+        with pytest.raises(Exception):
+            tsd.get(20, 10)
+
+        with pytest.raises(Exception):
+            tsd.get(10, [20])
+
+        with pytest.raises(Exception):
+            tsd.get([10], 20)
+
 
 ####################################################
 # Test for tsd
@@ -634,6 +669,13 @@ def test_str_indexing(self, tsdframe):
         np.testing.assert_array_almost_equal(tsdframe.values[:,0], tsdframe['a'])
         np.testing.assert_array_almost_equal(tsdframe.values[:,[0,2]], tsdframe[['a', 'c']])
 
+        with pytest.raises(Exception):
+            tsdframe['d']
+
+        with pytest.raises(Exception):
+            tsdframe[['d', 'e']]
+
+
     def test_operators(self, tsdframe):
         v = tsdframe.values