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...),env=testEnv) # remove the unneeded variable rm("temp",envir=testEnv) But I figure there must be a more elegant way. Anyone have any ideas? Thanks, Richard -- Richard D. Morey Assistant Professor Psychometrics and Statistics Rijksuniversiteit Groningen / University of Groningen http://drsmorey.org/research/rdmorey

Dear Contributors, I am asking help on the way how to solve a problem related to loops for that I always get confused with. I would like to perform the following procedure in a compact way. Consider that p is a matrix composed of 100 rows and three columns. I need to calculate the sum over some rows of each column separately, as follows: fa1<-(colSums(p[1:25,])) fa2<-(colSums(p[26:50,]))

...es, or will it be cast back to doubles? 3. Will calls to FORTRAN BLAS (like dsymv, dpotrf, dpotri) still work with long doubles? Thanks for any help you can provide. -- Richard D. Morey Assistant Professor Psychometrics and Statistics Rijksuniversiteit Groningen / University of Groningen http://drsmorey.org/research/rdmorey