Jan Neumann

Multiple independent `map_overlap` operations on same input with different window sizes produce incorrect prev_part sizes

3

**Describe the issue**: Whenever I run multiple `map_overlap`-type operations (includes also `rolling`, `shift`, etc.) on the same input with different window sizes (i.e., different `before` parameter), I get an error...

Inconsistency of Series.std() with Pandas when len(series) == 1

1

**Describe the issue**: When the length of your `dd.Series` is 1, running `series.std()` on it throws a `RuntimeWarning` from the `np.divide` function. Pure Pandas doesn't do that, and simply returns...