[R] Plot of set

[Greg Snow]

Here is a solution using contour:

x <- y <- seq(-1.5,1.5,length=100)
z <- outer(x, y, function(x,y) x^2+y^2)

contour(x,y,z, levels=1)



-- 
Gregory (Greg) L. Snow Ph.D.
Statistical Data Center
Intermountain Healthcare
greg.snow at imail.org
801.408.8111


> -----Original Message-----
> From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-
> project.org] On Behalf Of . .
> Sent: Sunday, February 20, 2011 2:41 AM
> To: r-help at r-project.org
> Subject: [R] Plot of set
> 
> 
> I am in the situation where I have to make a two-dimential plot of a
> set. If I simplify my data it would be something along the lines of
> wanting to plot {x,y| x^2+y^2 < = 1}.
> I am aware of the contour and persp plot, but cannot figure out how to
> convert one of those to draw the set. I have tried to google different
> ways of plotting in R but have not been able to find a method through
> that either.
> 
> Thanks in advance
> 
> Lise
> 	[[alternative HTML version deleted]]
> 
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