Clip contour or image
On Friday 16 March 2001 20:20, Han Lai wrote:
Hi, I am almost new to R. Would any one show me (please include an example) how to clip a contour or image figure so that I only see the image or lines inside a selected area?
You can use the xlim/ylim parameters (see help(plot.default) ) to specify each axis' start and end value:
x <- 1:50 y <- 1:50 z <- outer(x,y) image(z) image(z, xlim=c(0.2,0.5)) image(z, xlim=c(0.2,0.5), ylim=c(0,0.5))
The same works with contour(). If you wanted to clip _within_ the graphics area, I'm not sure if or how that would work. HTH Kaspar Pflugshaupt
Kaspar Pflugshaupt Geobotanical Institute ETH Zurich, Switzerland http://www.geobot.umnw.ethz.ch mailto:pflugshaupt at geobot.umnw.ethz.ch -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-request at stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._