LineChart Date Order Problem

mrburns2002 · Post by **mrburns2002** » Tue Feb 10, 2009 12:55 pm

Hi,

I try to insert values into my linechart like this:

avg_pathlength_dataset.addValue(curr_weight, current_word, curr_date);

curr_date is a String with the date in this format : YYYYMMDD

But at the end of the day I get a chart with mixed date order. How can I order the dates from the "smallest" date to the "highes" date?

THANKS!

Post by **david.gilbert** » Tue Feb 10, 2009 4:17 pm

Are you using a CategoryDataset? That isn't ideal for date-based data. Instead, use an XYPlot with a TimeSeriesCollection.

mrburns2002 · Post by **mrburns2002** » Wed Feb 11, 2009 5:25 pm

david.gilbert wrote:Are you using a CategoryDataset? That isn't ideal for date-based data. Instead, use an XYPlot with a TimeSeriesCollection.

Thanks and how would that look like? Yes, I use CategoryDataset
Can you give me an example?

Post by **david.gilbert** » Thu Feb 12, 2009 9:12 am

org.jfree.chart.demo.TimeSeriesDemo1.java is included in the distribution. Aside from that, you'll find many other demos included with the JFreeChart Developer Guide.