[R] set.cor/mat.regress

[Andrea Lamont]

I am having a problem with the function mat.regress in the psych package
that I was hoping someone would be able to give guidance on.

I have a correlation matrix that is [76,76] with the first column
representing the Y variable, the rest are the Xs. This is what my data
looks like:

m=runif(5776,-1,1)

mdat <- matrix(m, nrow = 76, ncol = 76, byrow = TRUE)

diag(mdat) <- 1


I am trying to obtain beta weights/regression coefficients from this
correlation matrix.

When I run:

set.cor(y=1, x=c(2:76),data=mdat)

or mat.regrss(y=1, x=c(2:76),data=mdat)


I get odd errors.  Most recently:

 set.cor(y=1, x=c(2:76),data=mdat) yields

Error in array(x, c(length(x), 1L), if (!is.null(names(x))) list(names(x),
 :

  'data' must be of a vector type, was 'NULL'

I have tried converting my matrix to a vector (as.vector). Still got
errors. Another common error I am getting is that the subscript not being
bound. I tried other options like square=FALSE to no avail.

It seems like such a straightforward function, I'm not sure what I'm doing
wrong.


Any help is appreciated.

Thanks

Andrea

-- 
Andrea Lamont, PhD
Post-Doctoral Fellow
University of South Carolina
Columbia, SC 29208

*Please consider the environment before printing this email.*

	[[alternative HTML version deleted]]