search for: yrseduc

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2005 Mar 30
1
fastbw question
...Design library fitting function; yet when I go to the help for fastbw (and also look in Frank's book Regression Modeling Strategies) it appears that fastbw should work with a model created with lm..... Relevant code <<<<< model.borrow.logols<- lm(logborrow~age + sex + racgp + yrseduc + needlchg + gallery + totni + inject + poly(year.of.int,3) + druginj + inj.years + HTLV3) fastbw(model.borrow.logols) >>>> Thanks in advance Peter Peter L. Flom, PhD Assistant Director, Statistics and Data Analysis Core Center for Drug Use and HIV Research National Developmen...
2004 Oct 08
1
polr and optim question
Hello again I am trying to fit an ordinal logistic model using the polr function from MASS. When I run model.loan.ordinal <- polr(loancat~age + sex + racgp + yrseduc + needlchg + gallery + sniffball + smokeball + sniffher + smokeher + nicocaine + inject + poly(year.of.int,3) + druginj + inj.years) I get an error Error in optim(start, fmin, gmin, method = "BFGS", hessian = Hess, ...) : non-finite value supplied by optim I checked in...