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2004 Oct 11
0
lmList - strange problem
...the levels of a grouping factor (gf) and individual 'lm' fits are obtained for each 'data'partition, using a model defined as in "lm". So my call to lmList looks something like: > mg.lis <- lmList(strmbf ~ age1c + gender1 + sysbp.clinic + + diabp.clinic + ldl1 + mets.total + bmi1c | gf, + data = Data, subset= avblock=="normal"); but I get a strange error message: "Error in model.frame.default(formula = form, data = dat, na.action = na.action, : object is not a matrix" If I remove either mets.total or bmi1c from my model...