Re: [R] asking about contour plot with R

From: Duncan Murdoch <>
Date: Fri, 08 Apr 2011 12:22:49 -0400

On 08/04/2011 9:16 AM, wrote:
> I'm working in Rosario, Argentina, trying to plot some contours.
> I found the function "draw.contour" created by James Forester at
> R-bloggers. If you take a look at that function you'll see it's very
> useful!
> But I have a problem with it and James is trying to help me (but also
> asked me to seek for more help) I hope you can help me (don't worry if you
> can't):
> Using "draw.contour" I get the contour but I want to place it in a
> cartesian-coordinate system where x = "Componente 1" range between -1 y 1
> and y = "Componente 2" range between 0 and 3, regardless of xrange or
> yrange.
> Of course, xrange and yrange are important to obtain an adequate contour
> plot but I want to see that contour in the cartesian coordinate system I
> told you before.
> so I put ylim = c(0,3) and xlim = c(-1,1) but R ignores those sentences
> and gives me a graphic using xrange and yrange as limits
> can anyone help me? I hope you can understand my problem (and my poor
> english!!!). if you don't, tell me and i'll send you more information
> thank you very much!!!

My advice would be to use the contour() function, rather than "draw.contour". I would guess the latter was written to solve a particular problem, whereas contour() is the general purpose function in base R, and it does respect your requests for xlim and ylim.

Duncan Murdoch mailing list PLEASE do read the posting guide and provide commented, minimal, self-contained, reproducible code. Received on Fri 08 Apr 2011 - 16:28:59 GMT

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