JFreeChart with dual x-axis

Question

I'd like to ask if it is possible to have a time series chart with dual x-axis (or y-axis but because it is a time series dataset I focus on dual x-axis). I have two data files in which the measurements were made during a minute or a whole day. As a result I can't have one x-axis. So, one solution is to transmorm one data file to the format of the other or to have two different x-axis. The second solution is it possible to be done? I found JFreeChartDualAxisDemo but it isn't what I want. Thanks in advance for any help!!! EDIT: I have the following code and I'm trying to create a Time Series Chart with two datasets which belong to a specific x-axes (As you can see I created two x-axes). I tried to execute this code but the chart that creates isn't right and in fact it has only the x-axes and y-axis. Can someone tell me where is the fault? ``` int year1 = 2004; int year2 = 2005; int year3 = 2006; int year4 = 2007; int month1 = 1; int month2 = 5; int month3 = 8; int month4 = 12; int day1…

Accepted Answer

Yes you can add a secondary X (Domain) axis. To add a secondary Domain axis to the demo you linked to add the following code:

```
final NumberAxis xAxis2 = new NumberAxis("Secondary X Axis");
plot.setDomainAxis(1, xAxis2 );
plot.mapDatasetToDomainAxis(1, 1);
```

to the constructor after you have a referance to the Plot (`plot`)

This will allow you to show both datasets thus:

JFreeChart with dual x-axis

Solution

Problem