[R] installing a new package in R

[Roger H. Coupal]

I am new to R. I am running it on a Mac with Osx. I want to run the
package systemfit on a problem I have but  get a response that the
package was not properly installed. I 've perused the manuals but cannot
seem to find the instructions for installing separate packages on R
under the mac. I'd be very appreciative if someone spelled out the
instructions. I put the package in the library directory, but I guess
there is more to it than that. Thanks.

Roger Coupal
Dept. of Agricultural and Applied Economics
University of Wyoming
307.766.5246
http://Agecon.uwyo.edu/EconDev
http://uwyo.edu/openspaces/index.html