[R] pairs plots in R

[Felix Andrews]

One idea:

if the primary variable of interest is a categorical (binary), I would
rather look at univariate plots for each of your 100 variables,
grouped by the primary one.

e.g.

library(latticeExtra)

marginal.plot(~ myBigDat, data = myBigData,
   groups = myBinaryVar, auto.key = TRUE,
   layout = c(4, 4))

(This is a convenient interface to lattice::densityplot and lattice::dotplot)

If you view 16 such densityplots per page, that still gives you 7
pages. You could use playwith() (from playwith package) to scroll
through the pages.

-Felix

2008/10/20 Sharma, Dhruv <Dhruv.Sharma at penfed.org>:
> Hi,
>  is there a way to take a data frame with 100+ columns and large data set to do efficient exploratory analysis in R with pairs?
>
> I find using pairs on the whole matrix is slow and the resulting matrix is tiny.
>
> Also the variable of interest for me is a binary var Y or N .
>
> Is there an efficient way to graphically view many variable relationships that does not look teeny ?
>
> I could do pairs 10 at a time but this seems too brute force.
>
> thanks
> Dhruv
>
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-- 
Felix Andrews / 安福立
http://www.neurofractal.org/felix/
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