Fixed several small bugs in table.py and xtable.py

jive/util/xtable.py

@@ -58,13 +58,15 @@ class XTable(Table):
 
     def set_col_values(self, irows, jcol, values):
         if irows is None:
+            self.reserve(values.shape[0])
             self._data[:, jcol] = values
         else:
+            self.reserve(max(irows)+1)
             self._data[irows, jcol] = values
 
     def add_col_values(self, irows, jcol, values):
         if irows is None:
-            self.reserve(len(values))
+            self.reserve(values.shape[0])
             self._data[:, jcol] += values
         else:
             self.reserve(max(irows)+1)