From: Dan Vanderkam
Most browsers will ignore the trailing comma, but it will break under IE.
+The Google + Visualization API provides a standard interface for describing data. Once +you've specified your data using this API, you can plug in any GViz-compatible +visualization. dygraphs is such a visualization.
+ +For a simple demonstration of how to use dygraphs a GViz visualization, see +this page. dygraphs can +also be used as a GViz gadget. This allows it to be embedded inside of a Google +Spreadsheet. For a demonstration of this, see this + spreadsheet.
+Situations often arise where you want to plot fractions, e.g. the fraction of respondents in a poll who said they'd vote for candidate X or the number of hits divided by at bats (baseball's batting average). Fractions require special treatment for two main reasons: