Add lost function check_estimated_shape (#101)

* Add lost function check_estimated_shape

This function transforms 1D output of shape (n,) to a 2D array of shape
(n, 1).

* Add tests for check_estimated_shape

kcsd/sKCSD_utils.py

@@ -168,6 +168,15 @@ def load_elpos(path):
         raise Exception('Unknown electrode position file format.')
     return ele_pos
 
+
+def check_estimated_shape(to_estimate):
+    if len(to_estimate.shape) == 1:
+        estimated = np.ndarray((to_estimate.shape[0], 1))
+        estimated[:, 0] = to_estimate
+        return estimated
+    return to_estimate
+
+
 def _bresenhamline_nslope(slope):
     """
     Normalize slope for Bresenham's line algorithm.

kcsd/tests/test_sKCSDutils.py

@@ -0,0 +1,20 @@
+from __future__ import print_function, division, absolute_import
+from kcsd.sKCSD_utils import check_estimated_shape
+import os
+import unittest
+import numpy as np
+
+class testCheckEstimatedShape(unittest.TestCase):
+    def test_unchanged(self):
+        array = np.ones((1, 5))
+        out = check_estimated_shape(array)
+        self.assertEqual(array.shape, out.shape)
+
+    def test_changed(self):
+        array = np.ones((5, ))
+        out = check_estimated_shape(array)
+        self.assertEqual(out.shape, (5, 1))
+
+
+if __name__ == '__main__':
+    unittest.main()