[R] xyplot with all columns of a data.frame on a single plot

[Phil Spector]

One of the nice features of R's formula syntax is that
you can create a character string containing a formula,
and pass it to the formula() function.  For example:

xyplot(formula(paste(paste(paste('D',1:10,sep=''),collapse='+'),'X',sep='~')),data)

will do what you want.

 					- Phil Spector
 					 Statistical Computing Facility
 					 Department of Statistics
 					 UC Berkeley
 					 spector at stat.berkeley.edu


On Mon, 26 Jul 2010, Rajarshi Guha wrote:

> Hi, I have a data.frame with columns named X, D1, D2, D3
>
> I know I can get a single plot with 3 curves by doing
>
> xyplot(D1 + D2 + D3 ~ X, data)
>
> but in some cases I might have columns D1 ...  D10.
>
> Is there a way to plot all 10 columns without having to specify each
> individual term?
>
> (By analogy with formulae in lm, I thought, xyplot(. ~ X, data) would
> work, but it didn't)
>
> Thanks,
>
> -- 
> Rajarshi Guha
> NIH Chemical Genomics Center
>
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