If you want to do efficient exploratory data analysis on this kind of  
dataset, then interactive graphics with parallel coordinate plots  
(ipcp in iplots) should help.  Of course, it depends what you mean by  
large.  It might be worth looking at the book "Graphics of Large  
Datasets" for some ideas.

Antony Unwin
Professor of Computer-Oriented Statistics and Data Analysis,
Mathematics Institute,
University of Augsburg,
86135 Augsburg, Germany
Tel: + 49 821 5982218


>
> From: "Sharma, Dhruv" <Dhruv.Sharma@PenFed.org>
> Date: 19 October 2008 10:58:53 pm GMT+02:00
> To: <r-help@r-project.org>
> Subject: [R] pairs plots in R
>
>
> 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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