Chart.js

Personal/Open source

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The Problem

Chart.js by Nick Downie (@nnnick) was created to make animated plots using the HTML5 canvas element. He originally wrote it to support bar, line, and three types of pie chart. I needed it for scientific purposes which required adding features.

My Role

I added support for error bars on bar and line Charts, by adding a new error bar chart element and two new chart types. The fork can be used either as a standalone library or an extension.