| commit | 92af96cd936055085fe8e57c0657d390c644d574 | [log] [tgz] |
|---|---|---|
| author | Avery Pennarun <apenwarr@gmail.com> | Sat Apr 06 00:03:37 2013 -0400 |
| committer | Avery Pennarun <apenwarr@gmail.com> | Sat Apr 06 00:03:37 2013 -0400 |
| tree | e633cdc85f3646cb83b51fc7c828fce2fae6313e | |
| parent | d248584b9090cff95ca0813e841c76e84ca201ce [diff] |
headgrid: handle situations where the stddev is zero. Basically this is a "nulls and dots" graph. nulls don't count toward stddev, so we were dividing by zero.