[R] Linear regression equation and coefficient matrix

[ashz]

Hi,

Thanks, the cor() works.

Regarding the simple linear regression equation (mainly, the slope
parameter) and r2. I think I was not writing it well. I need to do it just
for the columns. If I have a, b, c, d columns I wish to compute the relation
of there data,  e.g., between a-b, a-c, a-d, b-a, b-c, b-d, etc. 

I hope it is clear now and an help will be great.

Thanks.

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