Flotr2 Bar Chart

We are using the Flotr2 library to make a bar chart here. You can use color "coders" to give specific color to different data groups.
Note: Scatter and bar chart are quite similar in terms of settings.

To add a bar chart to your exhibit, you must include the flotr extension for Exhibit (in addition to the Exhibit API):

 <link rel="exhibit-extension" href="http://projects.csail.mit.edu/exhibit/api/extensions/flotr/flotr-extension.js"/>

To include a bar chart, add to your HTML

 <data-ex-role="view" 
        data-ex-view-class="BarChart" 
        data-ex-values=".birthrate"
        data-ex-grouped-by=".deathrate">
     </div>

Replace .birthrate and .deathrate with appropriate expressions.

Other settings include:

setting name	type of value	default	choices	meaning
plotHeight	int	400		Height of the plot in pixels
plotWidth	int	600		Width of the plot in pixels
color	text	#FF9000	Any color in accepted html format	All the bars in the chart will be of this color in the absence of color coders
colorCoder	text	null		id of a colorCoder
verticalChart	boolean	true	true, false	Orientation of bars; bars go horizontally in a vertical chart
valueLabel	text	x		Label for the values
groupLabel	text	y		Label for each bar
barWidth	float	0.8		Width of each bar
axisType	enum	linear	linear, logarithmic, log	Scale for axis
tickNum	int			Number of ticks along the axis
xAxisMin	float			Minimum value on axis
xAxisMax	float			Maximum value on axis
lineChart	boolean	false	true, false