* Zone control plots are now complete. * Fixed a potential bug in which duplicated values may not have been noted on the zone control plot. This is now based on duplicated indexes, so the values are guaranteed to be shown. * Examples are approximately up-to-date from an API standpoint.
0.5.0
Changed API to be more consistent with community expectations for `matplotlib` and for `six sigma` terminology.
0.4.1
Zone control plots with point highlighting for:
* beyond zone limits * zone a violations * zone b violations * zone c violations * trend violations * mixture violations
Each of these can be individually turned off as well in order to more easily resolve overlapping violations on the plot.