Ongoing: Fixing docstrings
Just pushed `scripts/find_undoc_args.py`. putting this here
for the occasional drive-by contributor, and newcomers who would appreciate
an opportunity to make a "low-risk" first PR.
- [x] 1) [pandas/compat/scipy.py:8 (scoreatpercentile())](https://github.com/pydata/pandas/blob/master/pandas/compat/scipy.py#L8) -  **Missing**[1/4]: ['interpolation_method']    **Extra**(?): ['interpolation']
- [ ] 2) [pandas/core/algorithms.py:105 (factorize())](https://github.com/pydata/pandas/blob/master/pandas/core/algorithms.py#L105) -  **Missing**[1/4]: ['na_sentinel']
- [ ] 3) [pandas/core/format.py:1287 (set_printoptions())](https://github.com/pydata/pandas/blob/master/pandas/core/format.py#L1287) -  **Missing**[3/12]: ['max_colwidth', 'colheader_justify', 'encoding']
- [x] 4) [pandas/core/frame.py:5714 (boxplot())](https://github.com/pydata/pandas/blob/master/pandas/core/frame.py#L5714) -  **Missing**[3/6]: ['ax', 'grid', 'rot']    **Extra**(?): ['data']
- [x] 5) [pandas/core/generic.py:1005 (truncate())](https://github.com/pydata/pandas/blob/master/pandas/core/generic.py#L1005) -  **Missing**[1/3]: ['copy']
- [ ] 6) [pandas/core/groupby.py:529 (groupby())](https://github.com/pydata/pandas/blob/master/pandas/core/groupby.py#L529) -  **Missing**[1/2]: ['by']    **Extra**(?): ['groupings', 'axis', 'exclusions', 'name', 'level']
- [x] 7) [pandas/core/reshape.py:601 (lreshape())](https://github.com/pydata/pandas/blob/master/pandas/core/reshape.py#L601) -  **Missing**[1/4]: ['label']
- [x] 8) [pandas/core/reshape.py:725 (make_axis_dummies())](https://github.com/pydata/pandas/blob/master/pandas/core/reshape.py#L725) -  **Missing**[1/3]: ['frame']    **Extra**(?): ['call']
- [x] 9) [pandas/stats/math.py:93 (calc_F())](https://github.com/pydata/pandas/blob/master/pandas/stats/math.py#L93) -  **Missing**[1/6]: ['R']
- [x] 10) [pandas/stats/moments.py:804 (expanding_apply())](https://github.com/pydata/pandas/blob/master/pandas/stats/moments.py#L804) -  **Missing**[1/6]: ['time_rule']
- [x] 11) [pandas/stats/moments.py:721 (expanding_count())](https://github.com/pydata/pandas/blob/master/pandas/stats/moments.py#L721) -  **Missing**[1/4]: ['time_rule']
- [x] 12) [pandas/stats/moments.py:741 (expanding_quantile())](https://github.com/pydata/pandas/blob/master/pandas/stats/moments.py#L741) -  **Missing**[1/6]: ['time_rule']
- [x] 13) [pandas/stats/moments.py:556 (rolling_apply())](https://github.com/pydata/pandas/blob/master/pandas/stats/moments.py#L556) -  **Missing**[1/7]: ['time_rule']
- [x] 14) [pandas/stats/moments.py:128 (rolling_count())](https://github.com/pydata/pandas/blob/master/pandas/stats/moments.py#L128) -  **Missing**[1/5]: ['time_rule']
- [x] 15) [pandas/stats/moments.py:528 (rolling_quantile())](https://github.com/pydata/pandas/blob/master/pandas/stats/moments.py#L528) -  **Missing**[1/7]: ['time_rule']
- [x] 16) [pandas/stats/moments.py:584 (rolling_window())](https://github.com/pydata/pandas/blob/master/pandas/stats/moments.py#L584) -  **Missing**[2/9]: ['time_rule', 'axis']
- [x] 17) [pandas/stats/moments.py:256 (_rolling_moment())](https://github.com/pydata/pandas/blob/master/pandas/stats/moments.py#L256) -  **Missing**[1/8]: ['time_rule']
- [x] 18) [pandas/stats/ols.py:1243 (_filter_data())](https://github.com/pydata/pandas/blob/master/pandas/stats/ols.py#L1243) -  **Missing**[1/3]: ['weights']
- [x] 19) [pandas/tools/plotting.py:96 (scatter_matrix())](https://github.com/pydata/pandas/blob/master/pandas/tools/plotting.py#L96) -  **Missing**[2/7]: ['marker', 'frame']
- [x] 20) [pandas/tools/plotting.py:1811 (boxplot_frame_groupby())](https://github.com/pydata/pandas/blob/master/pandas/tools/plotting.py#L1811) -  **Missing**[3/7]: ['grouped', 'grid', 'figsize']
- [x] 21) [pandas/tools/plotting.py:1981 (_subplots())](https://github.com/pydata/pandas/blob/master/pandas/tools/plotting.py#L1981) -  **Missing**[1/9]: ['data']    **Extra**(?): ['fig_kw']
- [x] 22) [pandas/tools/plotting.py:307 (andrews_curves())](https://github.com/pydata/pandas/blob/master/pandas/tools/plotting.py#L307) -  **Missing**[1/4]: ['ax']
- [x] 23) [pandas/tools/plotting.py:1545 (boxplot())](https://github.com/pydata/pandas/blob/master/pandas/tools/plotting.py#L1545) -  **Missing**[3/8]: ['ax', 'grid', 'figsize']
- [x] 24) [pandas/tools/plotting.py:1671 (hist_frame())](https://github.com/pydata/pandas/blob/master/pandas/tools/plotting.py#L1671) -  **Missing**[3/11]: ['column', 'data', 'by']
- [ ] 25) [pandas/tools/plotting.py:1358 (plot_frame())](https://github.com/pydata/pandas/blob/master/pandas/tools/plotting.py#L1358) -  **Missing**[3/24]: ['frame', 'fontsize', 'figsize']    **Extra**(?): ['barh', 'bar', 'stacked']
- [ ] 26) [pandas/tools/plotting.py:1467 (plot_series())](https://github.com/pydata/pandas/blob/master/pandas/tools/plotting.py#L1467) -  **Missing**[1/16]: ['series']    **Extra**(?): ['barh', 'bar']
- [ ] 27) [pandas/tools/tile.py:14 (cut())](https://github.com/pydata/pandas/blob/master/pandas/tools/tile.py#L14) -  **Missing**[2/7]: ['include_lowest', 'precision']
- [ ] 28) [pandas/tools/tile.py:104 (qcut())](https://github.com/pydata/pandas/blob/master/pandas/tools/tile.py#L104) -  **Missing**[1/5]: ['precision']
- [x] 29) [pandas/tseries/frequencies.py:741 (infer_freq())](https://github.com/pydata/pandas/blob/master/pandas/tseries/frequencies.py#L741) -  **Missing**[1/2]: ['warn']
- [x] 30) [pandas/tseries/offsets.py:1163 (generate_range())](https://github.com/pydata/pandas/blob/master/pandas/tseries/offsets.py#L1163) -  **Missing**[2/5]: ['time_rule', 'offset']
- [x] 31) [pandas/tseries/tools.py:51 (to_datetime())](https://github.com/pydata/pandas/blob/master/pandas/tseries/tools.py#L51) -  **Missing**[3/6]: ['box', 'dayfirst', 'format']
