Fix changing the depth of unloaded multidimensional columns

- Bump to 1.0.15

datamatrix/__init__.py

@@ -28,6 +28,6 @@
 from datamatrix._datamatrix._nifticolumn import NiftiColumn
 from datamatrix._datamatrix._datamatrix import DataMatrix
 
-__version__ = '1.0.14'
+__version__ = '1.0.15'
 NAN = float('nan')
 INF = float('inf')

datamatrix/_datamatrix/_multidimensionalcolumn.py

@@ -178,6 +178,9 @@ def depth(self, depth):
             if self.defaultnan:
                 seq[:] = np.nan
             seq[:, :self.depth] = self._seq
+            # If the depth is changed, we need to take this into account by 
+            # setting the current shape based on the target shape
+            self._shape = seq.shape[1:]            
             self._seq = seq
             self._shape = (depth, )
             return

testcases/test_memmap.py

@@ -20,7 +20,7 @@
 from datamatrix.py3compat import *
 from datamatrix import cfg, io
 from datamatrix import DataMatrix, MultiDimensionalColumn, INF, \
-    functional as fnc
+    functional as fnc, SeriesColumn
 from testcases.test_tools import check_dm
 import itertools as it
 
@@ -125,3 +125,12 @@ def test_memmap_multiprocess_stack():
     cfg.min_mem_free_rel = .5
     cfg.min_mem_free_abs = 4294967296
     cfg.always_load_max_size = 134217728
+
+
+def test_memmap_seriescolumn_depth():
+    dm = DataMatrix(length=2)
+    dm.s = SeriesColumn(depth=3)
+    dm.s.loaded = False
+    assert not dm.s.loaded
+    dm.s.depth = 4
+    assert not dm.s.loaded