Displaying external information on chart

[Filoche]

Hi all.

I'm using a LineChart and I want to display external information on it (like the R^2) of a regression.

My quesiton is : is it possible to write (display) texte at x,y position in my chart?

Best regards, and have a neci day.

Phil

[RichardWest]

My quesiton is : is it possible to write (display) texte at x,y position in my chart?

Use a XYTextAnnotation.

[Filoche]

Thank you for the fast respons.

It is almost working prefectly. But from what I understand, the xy coords are based on data in the chart ?

Is there a way to set x and y as relative coords (like 0,0 the upper corner left) ?

Phil

[RichardWest]

Take a look at Title/legend and combined plots. The post is a bit old, but the spirit of it matches your goal. You will need to include the experimental jar to use the XYTitleAnnotation class.

[Filoche]

Ty sir.

Looks like it was what I was looking for.

One more question. Is it possible to get the min and max values for a d ataset? If so I could transpose these value between 0, and 1.

Tx

[RichardWest]

Is it possible to get the min and max values for a d ataset?

Take a look at DatasetUtilities.

If so I could transpose these value between 0, and 1.

Create a custom dataset that extends the XYDataset and override the getY and getYValue methods to return super version divided by the maximum. This would effectively render the data as percentage of maximum. I think that is what you are asking about.

[Filoche]

Everything working fine.

I appreciated your help.

Best regards, and have a ncie week-end.