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...e the problem) 2) Recompile R to get bigger memory capability? (I'll have to cross-post to some R forums too) This will be a challenge for a Linux newbie...like me. 3) Any other suggestions? My goal is to create a bigger neural network than fits in my Windows R version. -- David Katz www.davidkatzconsulting.com 541 482-1137 [[alternative HTML version deleted]]

...the user is willing to specify the design matrix in matrix.csr form. This is often advantageous in large problems to reduce memory requirements. I need some help or a reference that will show how to create the design matrix from data in matrix.csr form. Thanks for any help. -- David Katz www.davidkatzconsulting.com 541 482-1137 [[alternative HTML version deleted]]