I would like to query an existing plot to learn the actual x and y limits of the plottable area. Is this possible? I can discover the extreme tick mark locations but not the actual plot area limits. Setting the limits with ylim will not help in this case because I am overplotting an existing plot with a separate function, and I don't want my end-user to have to pass parameters around. Thanks, Mark
how can I find actual axis limits for an existing plot?
2 messages · Mark Borowsky, Eik Vettorazzi
Hi,
see ?par
You are probably interested in par("usr")
Mark Borowsky schrieb:
I would like to query an existing plot to learn the actual x and y limits of the plottable area. Is this possible? I can discover the extreme tick mark locations but not the actual plot area limits. Setting the limits with ylim will not help in this case because I am overplotting an existing plot with a separate function, and I don't want my end-user to have to pass parameters around. Thanks, Mark
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