Create a Bar Chart from a list/array

Posted on June 20, 2013 at 4:46am

I have a variable of type List (ArrayList in fact) that contains numbers. How can I plot that numbers in a Bar Chart? What should I enter in Series Category Expression?

Complete story:

I'm using an XML datasource. One of its fields is:

<values>48,59,59,58,53,53,52,55,50,52,54,56,57,59,60,57,56,55,58,62</values>

So I've created a variable with those values splitted like this:

<variable name="arraylist" class="java.util.List">
<variableExpression><![CDATA[new
ArrayList<>(Arrays.asList($F{values}.split(",")))]]></variableExpression>
</variable>

Now I want to plot the values in a Bar Chart but... what should I write here?

The list of values will always have 20 values (size=20), if that simplifies the problem.

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TheBronx
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Joined: Apr 12 2013 - 12:09am
Last seen: 9 years 1 month ago

1 Answer:

Posted on June 21, 2013 at 5:38am

You could create a subdataset that has a field called _THIS, use the subdataset for the chart with new net.sf.jasperreports.engine.data.JRBeanCollectionDataSource($V{arraylist}), and set $F{_THIS} as category and value expressions.

HTH,

Lucian

lucianc's picture
lucianc
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Joined: Jul 17 2006 - 1:10am
Last seen: 3 weeks 6 days ago

DId it work for yu ? if so can u please share ur jrxml here as I am stuck in same kind of scenario

ruchiagraw - 7 years 10 months ago
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