[R] Reading xyz data from a file and plotting a contour plot

[Abhinav Verma]

Hello Petr,

 Thanks a lot for the reply, it works..

cheers,
Abhi.

On 4/5/06, Petr Pikal <petr.pikal at precheza.cz> wrote:
> Hi
>
> On 5 Apr 2006 at 10:44, Abhinav Verma wrote:
>
> Date sent:              Wed, 5 Apr 2006 10:44:41 +0200
> From:                   "Abhinav Verma" <abhinav1205 at gmail.com>
> To:                     r-help at stat.math.ethz.ch
> Subject:                [R] Reading xyz data from a file and plotting a contour plot
>
> > Hello ,
> >
> >  I am very new to R and I tried to find some solutions to my problem
> >  in
> > the mail archives, but I couldnt.
> >
> >  All I need to do is read a data file, which has data in " X Y Z "
> >  format
> > and then I want to plot a surface plot or a contour plot of this.
> >
> > my data is like ..
> >
> > 1710 0.626938723432     18.786
> > 1582 0.58561524019      9.01
> > 1629 0.617393680032     6.075
> > 1561 0.57943533994      3.436
> > 1557 0.56416723609      9.985
> > 1576 0.60443022033      7.71
> > 1583 0.573542592476     2.743
> > 1627 0.575233663156     2.821
> > 1600 0.574245291511     -0.64
> > 1658 0.587265947626     2.231
>
> Something like
>
>  tab<-read.table("clipboard")
>  tab
>      V1        V2     V3
> 1  1710 0.6269387 18.786
> 2  1582 0.5856152  9.010
> 3  1629 0.6173937  6.075
> 4  1561 0.5794353  3.436
> 5  1557 0.5641672  9.985
> 6  1576 0.6044302  7.710
> 7  1583 0.5735426  2.743
> 8  1627 0.5752337  2.821
> 9  1600 0.5742453 -0.640
> 10 1658 0.5872659  2.231
>  > library(akima)
> contour(interp(tab$V1, tab$V2, tab$V3))
> image(interp(tab$V1, tab$V2, tab$V3))
>
> HTH
> Petr
>
>
>
>
> > .....
> > .....
> >
> >
> >  Any help is appriciated.. Thanks in advance,
> >
> > -- Abhi
> >
> > ______________________________________________
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>
> Petr Pikal
> petr.pikal at precheza.cz
>
>