nnnick/Chart.js — pull request #173 by Wikunia (2013-07-11 10:04:02+00:00)
Title: possibility to have a logarithmic y-Axis scale 

It is now possible to have a logarithmic y-Axis scale in line and bar charts.
If the range of magnitude is 10^4 or higher than a logarithmic scale is interpreted as meaningful.