Re: [R] mouse-clicking on xy-plot

To extend on Walmes locator, there is a great article (by Timothée) on how to extract data points from an image using R: http://www.r-bloggers.com/getting-data-from-an-image-introductory-post/ Contact Details:--- Contact me:

[R] mouse-clicking on xy-plot

Hi, I seem to recall coming across a function that allowed one to mouse-click on an xy-plot and obtain x and y coordinates. Can anyone remind me its name? Thanks, Nuno __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help

Re: [R] mouse-clicking on xy-plot

Are you thinking of ?identify ? Nuno Prista wrote: Hi, I seem to recall coming across a function that allowed one to mouse-click on an xy-plot and obtain x and y coordinates. Can anyone remind me its name? Thanks, Nuno __ R-help@r-project.org

Re: [R] mouse-clicking on xy-plot

You can use identify() to obtain coordinates from plotted points but if you want any coordinates you could use locator(): plot(1:10) loc - locator(n=3) str(loc) List of 2 $ x: num [1:3] 2.3 5.4 8.29 $ y: num [1:3] 6.15 8.33 2.6 points(loc$x, loc$y, col=2) Walmes. - ..ooo0