danvk/dygraphs — pull request #288 by martyj (2013-12-13 20:46:02+00:00)
Title: Fixed a bug where it would get the wrong extreme values for data that ha...

If your data is passed in via strings the comparator would fail on a comparison similar to "72.6" > "321.4"

This would distort the graph and give you the incorrect extremes.