Bar chart with unknown number of series

[itchytoes]

Hi -- I found this <a href="http://jasperforge.org/plugins/espforum/view.php?group_id=102&forumid=103&topicid=53028">useful post</a> which explained how to do a chart where my number of series is varying.

I do have a couple of questions.

It seems to work only if every category has the same number of series.  If not all values are there for every series in each category, then it does not work.  Is that true?

Also, it seems like I cannot set incrementGroup and incrementType for the chart dataset, or else I only get one series.

It seems like with a "normal multiple-series" report, like the BarChartReport in the sample, the incrementGroup is set to the group that changes the category.

 

Thanks

 

Betty