问题描述
有没有一个简单的方法来删除没有价值的天?
以下是我的一些数据
12-04-2012 => 15
13-04-2012 => 12
15-04-2012 => 10
16-04-2012 => 5
Is there a simple way to remove days with no value?Here is some of my data12-04-2012 => 15
13-04-2012 => 12
15-04-2012 => 10
16-04-2012 => 5
在图表14-04-2012画了。我的意思是,theres在13-04和15-04之间更长的线。
In chart 14-04-2012 is painted. I mean, theres a longer line between 13-04 and 15-04. Is it possible to have equal gaps between values?
推荐答案
是否使用TimeSeries(org.jfree.data.time.TimeSeries
)?如果这样考虑使用CategoryDataset(org.jfree.data.time.TimeSeries)
Are you using an TimeSeries (org.jfree.data.time.TimeSeries)? if so consider using a CategoryDataset (org.jfree.data.time.TimeSeries)
private static CategoryDataset createDataset() {
DefaultCategoryDataset dataset = new DefaultCategoryDataset();
dataset.addValue(15, "Series 1", "12-04-2012");
dataset.addValue(12, "Series 1", "13-04-2012");
dataset.addValue(10, "Series 1", "15-04-2012");
dataset.addValue(5, "Series 1", "16-04-2012");
return dataset;
}
使用此数据与JFreeChart 线图演示8 您会看到:
Using this data with JFreeChart Line Chart Demo 8 you will get this:
省略第14个
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