Hi, coxfilter function in genefilter package uses coxph to fit a model to filter genes. how come that coxfilter could converge to find a solution in cox model fitting using a data matrix of 8000 variables and 600 samples but coxph doesn't converge with the same matrix? regards, carol --------------------------------- [[alternative HTML version deleted]]
On Mon, 21 May 2007, carol white wrote:> Hi, coxfilter function in genefilter package uses coxph to fit a model > to filter genes. how come that coxfilter could converge to find a > solution in cox model fitting using a data matrix of 8000 variables and > 600 samples but coxph doesn't converge with the same matrix?coxfilter() fits 8000 one-variable models, which works (for appropriate values of "works"). coxph() refuses to fit one 8000-variable model. -thomas