handle unsized objects

Author: betaBison

gnss_lib_py/parsers/navdata.py

@@ -689,7 +689,7 @@ def interpolate(self, x_row, y_rows, inplace=False, *args):
             new_navdata = self.copy()
         for y_row in y_rows:
             nan_idxs = self.argwhere(y_row,np.nan)
-            if len(nan_idxs) == 0:
+            if nan_idxs.size == 0:
                 continue
             not_nan_idxs = self.argwhere(y_row,np.nan,"neq")
             x_vals = self[x_row,nan_idxs]