[R] contour
Rui Barradas
ruipbarradas at sapo.pt
Wed Jul 18 13:04:23 CEST 2012
Hello,
Now I don't understand. Inline
Em 18-07-2012 11:56, Akhil dua escreveu:
> why are you writing ncol=2 ?
>
> I have levels=100 for x1 and the x1 is my z matrix
>
In your contour instruction x3 is the z matrix, not x1. And your dataset
shows a 2x3 grid, hence ncol=2, for (x1 times x2) 0:1x1:3.
Also, see Eik's post, lattic graphics clearly are more intuitive.
Rui Barradas
>
>
> On Wed, Jul 18, 2012 at 3:46 PM, Rui Barradas <ruipbarradas at sapo.pt
> <mailto:ruipbarradas at sapo.pt>> wrote:
>
> Hello,
>
> Follow the code below and see what's the right way:
>
>
> d <- read.table(text="
>
> x1 x2 x3
> 0 1 2
> 0 2 1
> 0 3 5
> 1 1 4
> 1 2 2
> 1 3 3
> ", header=TRUE)
>
> x3 <- matrix(d[, "x3"], ncol=2)
> levels <- sort(unique(x3))
> contour(0:1, 1:3, t(x3), levels=levels)
>
>
> Hope this helps,
>
> Rui Barradas
>
> Em 18-07-2012 10:23, Akhil dua escreveu:
>
> Hello Everyone
>
> I have the data long format and I want to draw the contour plot
> with it
>
> x1 x2 x3
> 0 1 2
> 0 2 1
> 0 3 5
> 1 1 4
> 1 2 2
> 1 3 3
>
>
> when I am using contour(x1,x2,x3,col=heat.__colors) or fill.contour
> its giving me an error that increasing x and y expected
>
>
> So please tell me what is the right function to draw contour
> when the data
> is not ordered and you cant order it.
>
> [[alternative HTML version deleted]]
>
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