Michael Trosset wrote a program for classical metric MDS that Mark Rorvig and I used with success on matrices much larger than 400 by 400. But it doesn't do nonmetric MDS. The program is written in Fortran and requires the ARPACK libraries. I was able to compile with g77 on Linux and Solaris with little trouble. Dave Dubin Dirk Meurer <[log in to unmask]> writes: > Dear Listmembers, > I would like to do a MDS with a 400X400 square, symetric matrix of > (dis)similaritys. Most MDS-Software is limited to a much smaller amount > of variables though. I have been told, that SAS might be able to process > the analyis I need, but this is quite inconvenient for me in terms of > access to the software, hardware-requirements etc. Could anybody tell > me, if there is a stand-alone program that can do MDS (preferably > nonmetric) with a matrix of that size? > > Thanks a lot for your help, > dirk > > P.S: My Matrix is not suitable for factor analysis and clustering does > not produce the results I need. >