[R] pairs plots in R
felix at nfrac.org
Mon Oct 20 05:37:10 CEST 2008
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.
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.
2008/10/20 Sharma, Dhruv <Dhruv.Sharma at penfed.org>:
> 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.
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Felix Andrews / 安福立
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