[R] Non linear programming: choose R that minimizes corr(y, x^R)

[John Sorkin]

I am looking for a package that will allow me to choose R (a real number) that minimizes the correlation of y and x^R, i.e.
find R such that corr(y,x^R) is minimized. Any suggestions for packages I might look at would be helpful.
Thanks,
John 
 
 
John David Sorkin M.D., Ph.D.
Chief, Biostatistics and Informatics
University of Maryland School of Medicine Division of Gerontology
Baltimore VA Medical Center
10 North Greene Street
GRECC (BT/18/GR)
Baltimore, MD 21201-1524
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