2. Performant CategoryDataset jfree.orgI have about 200k rows in a table model (for upto 50k rows graphs come up just fine, FC4 x86_64 2GB). A few columns (1-N) need graphing and when I insert those values into the DefaultCategoryDataset it results in equal or greater number of Values2D entries and the JVM comes to grinding halt with 99% CPU utilization. I am seeing a ... |
3. ChartFactory.createStackedAreaChart() with CategoryDataset ? jfree.orgChartFactory.createStackedAreaChart() with CategoryDataset ? by deepika Wed Nov 29, 2006 8:09 pm Hi Everyone, Here is something very simple, I am trying to do. I am trying to create a stacked area chart using ChartFactory.createStackedAreaChart() with CategoryDataset. But to my surprise, tooltip behaves very different compared to using ChartFactory.createAreaChart() with CategoryDataset. When I say it behaves different, I mean that ... |
4. Can I represent mutiple lines in one CategoryDataset? jfree.orgIt all depends on how the dataset is implemented. In the case of the DefaultCategoryDataset class, you specify a row key and a column key for every value you add. The row key can be considered the "series" key. So when you populate the DefaultCategoryDataset, add values for more than one series. |
5. CategoryDataset => Disable Sort Order jfree.org |
6. Removing items from a CategoryDataset jfree.orgHello, I have a chart that uses the following Datasets 1) DefaultBoxAndWhiskerDataset 2) DefaultCategoryDataset Based on user actions I need to remove items from both the datasets. (Both the datasets will always have the same number of items.) I see that the DefaultCategoryDataset has methods such as removeColumn, etc but the same methods are not available for the DefaultBoxAndWhiskerDataset. Is there ... |
7. A problem for creating a CategoryDataset jfree.orgHi I am currently having trouble creating a CategoryDataset: this is part of my code: ... import org.jfree.data.category.CategoryDataset; import org.jfree.data.category.DefaultCategoryDataset; ... JFreeChart chart = ChartFactory.createLineChart("Vis","Experiment","Expression Level",dataset,PlotOrientation.VERTICAL,false,true,false); however, in JBuilder, it shows an error: createLineChart(java.lang.String,java.lang.String,java.lang,String,org.jfree.data.CategoryDataset,org.jfree.chart.plot.PlotOrientation,boolean,boolean)in org.jfree.chart.ChartFactory cannot be applied to (java.lang.String,java.lang.String,java.lang.String,org.jfree.data.category.CategoryDataset,org.free.chart.plot.PlotOrientation,boolean,boolean,boolean) I check the API: there is even not a class called: org.jfree.data.CategoryDataset And I do not import this class and definitely ... |
8. CategoryDataSet jfree.org |
9. CategoryDataset w keys, GroupedStackedBarRenderer w indexes jfree.orgThe subject should be: "DefaultCategoryDataset uses Comparable keys for access to data, GroupedStackedBarRenderer uses int indexes for access to data". But the forum has a limit on the subject length. I'm trying to create a stacked bar chart. I'm having a hard time getting the colours of the items on the stacked groups to show up as the correct colour. My ... |
10. CategoryDataset as a crosstab jfree.orgHello. I'm newbie and I'd like to give props to the JFreeChart team. Great tool, people! Here's my problem: I'm using JFreeChart to create a bar chart that is later inserted as a buffered image in a Jasper report. The chart data is provided by populating a DefaultCategoryDataset object. Currently, the final report is displaying the JFreeChart chart nicely, so no ... |
11. CategoryDataset with notify boolean jfree.orgHi, everybody I would like to know If there is a way to make faster Line charts using a CategoryDataset (more than 1500 points). Using a Line Chart Based On An XYDataset instead, we have the "add" method that controls whether or not a SeriesChangeEvent is sent to all registered listeners with notify boolean. It would be nice if we could ... |
12. highlow-values in CategoryDataset jfree.org |
13. Overlaying charts - problems by using CategoryDataset jfree.orgOverlaying charts - problems by using CategoryDataset by DianaW Tue Aug 26, 2008 10:15 am Hello, I use JFreeChart(version 1.0.9) for the application I am creating. Following open issues I would like to come up to: The plot should display multiple line charts and a chart to display min/max-values. Both of these charttypes should be displayed in one plot. Following ... |