R: Add vertical line to a plot

If you have a plot open and want to add a vertical line to it:

abline(v=20) #Add vertical line at x=20

This entry was posted on Sunday, March 21st, 2010 at 7:24 pm and is filed under plot, r. You can follow any comments to this entry through the RSS 2.0 feed. You can leave a comment, or trackback from your own site.

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