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Number of variables in lrm (Design)
2 messages · Paul Sweeting, Frank E Harrell Jr
Paul Sweeting wrote:
Hi I'm sure this is straightforward, but I can't find an answer. I'm trying to find the function that returns the number of dependent variables/rank of the regression/degrees of freedom/something similar. Any ideas? Thanks! Paul
Design does not allow for singularities. To get the regression d.f. you can use length(coef(fit))-num.intercepts(fit) or just fit$stats['d.f.'] Frank
Frank E Harrell Jr Professor and Chair School of Medicine
Department of Biostatistics Vanderbilt University