search for: ironresults

Displaying 1 result from an estimated 1 matches for "ironresults".

2004 Aug 09
1
linear regression
...r regression successfully on R a few times before. But this time it keeps telling me:- "Error in lm.fit(x, y, offset = offset, singular.ok = singular.ok, ...) : 0 (non-NA) cases" The model is:- fm1 <- lm(TS.CM ~ AGE + SEX + HFE.Y.01 + TFC2B.01 + HFE.Y.01*TFC2B.01, data = IRONresults, subset = DIAG2.1D == 0) summary (fm1) TS.CM is a continuous variable (%s), sex is coded 0 = women, 1 = men, DIAG2.1D is coded 0 = non-demented, 1 = ALzheimer's disease and the genes, HFE.Y.01 & TFC2B.01, are coded 0 = non-carrier and 1 = carrier I've tried recoding the data to use...