Template:Graph:Chart/doc

Examples
Line Chart:

 

Note: The y-axis starts from the smallest y value, though this can be overridden with the yAxisMin parameter.

Area chart:

 

Note: The y-axis starts from zero

Bar chart:

 

Line chart with more than one data series, using colors:

 

Area chart with more than one data series showing blended overlap:

 

Bar chart with multiple data series:

 

Area chart with smoothed data values:

 

Bar chart with stacked data series:

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Note that the order of the stacking is governed by the alphabetic value of the y-Titles used for the legend. You can always prepend a number 1, 2, 3 to establish whatever stacking order you want.