[R] density plot - beginner's question

Petr Pikal petr.pikal at precheza.cz
Tue Jan 14 10:01:03 CET 2003


On 13 Jan 2003 at 18:22, Saurav Pathak wrote:

> Hi,
> I am trying to plot densities given on a two dimensional grid.  My
> data is in the an external file, and is arranged in three columns: x,
> y, density
> how may i get a plot of this?  i would like to get (1) a three
> dimensional plot and (2) a color coded two dimensional plot.
> I have tried using 

try to use

>  image(x, y, density)
> but i am asked to put the data in ascending order.  i am not sure how
> i may put grid points in an ascending order.
> I would also like to know if i could use any other function, other
> than image.
> thank you in advance.
> -- 
> saurav
> ______________________________________________
> R-help at stat.math.ethz.ch mailing list
> http://www.stat.math.ethz.ch/mailman/listinfo/r-help

Hope it helps

petr.pikal at precheza.cz
p.pik at volny.cz

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