[R] test to compare significant correlation increase

[David Riano]

Hi!
I am calculating correlation between two variables:
1. X versus Y
2. X versus Y(with a 3 steps lag)

I would like to test if the correlation 
increase/decrease from 1 to 2 is significant or not.

Is there any function in R to do this? any hints?

Thanks for help :)

David Riaño
Center for Spatial Technologies and Remote Sensing (CSTARS)
University of California
250-N, The Barn
One Shields Avenue
Davis, CA 95616-8527
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1-(517) 629-5499
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