[R] Linear regression equation and coefficient matrix

[Joshua Wiley]

On Wed, Aug 18, 2010 at 6:09 AM, ashz <ashz at walla.co.il> wrote:
>
> Hi,
>
> I have 20*60 data matrix (with some NAs) and I wish to perfom a  Pearson
> correlation coefficient matrix as well as simple linear regression equation

The correlation matrix can be readily obtained by calling cor() on the
entire matrix.

> and coefficient of determination (R2) for every possible combination. Any
> tip/idea/library/script how do to so.

So you have 60 variables, and you want every possible combination?  I
may be mistaken, but isn't that 60! if you ignore any interactions?
If so, this strikes me as a job for

library(fortunes)
fortune("hundreds")


>
> Thanks,
> As hz
>
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-- 
Joshua Wiley
Ph.D. Student, Health Psychology
University of California, Los Angeles
http://www.joshuawiley.com/