logistic.display need a rather tidy model ie all independent variables must be the original name not any function of a variable in the dataset of the model.
If data1 is your dataset containing y, 'gender' and 'age', what you need to do is > data1$age1 <- factor(data1$age) > result1<-glm(y ~ age1 + gender + CD4,family = binomial, data=data1) > logistic.display(result1) Note that 'gender', like 'y', is already dichotomized (0,1). There is no need to 'factor' Virasakdi C 2011/12/14 ©sªY <lm_meng...@163.com> > > Hi sir: > I follow your suggestion: > > result<-glm(y ~ factor(age) + factor(gender) + CD4,family = binomial) > logistic.display(result) > > Error in coeff[, 1] : incorrect number of dimensions > > > > > > > At 2011-12-14 01:59:36,"Jorge I Velez" <jorgeivanve...@gmail.com> wrote: > > Hi there, > > Try > > require(epicalc) > logistic.display(result) > > HTH, > Jorge > > On Tue, Dec 13, 2011 at 7:16 AM, ©sªY <> wrote: > >> Hi all: >> My data has 3 variables: >> age(3levels : <30y=1 30-50y=2, >50y=3) >> gender(Male=0, Female=1) >> CD4 cell count(raw lab measurement) >> y(1:death 0:alive) >> >> I perform logistic regression to find out the factors that influence y. >> >> result<-glm(y ~ factor(age) + factor(gender) + CD4,family = binomial) >> >> >From the result,I can get OR(Odds Ratio) of gender via exp(Estimate of >> Female, since Male is regarded as reference group and has no result).But >> how can I compute the 95%CI of OR of gender? >> >> >> Thanks a lot for your help. >> >> My best! >> >> >> >> >> [[alternative HTML version deleted]] >> >> ______________________________________________ >> R-help@r-project.org mailing list >> https://stat.ethz.ch/mailman/listinfo/r-help >> PLEASE do read the posting guide >> http://www.R-project.org/posting-guide.html >> and provide commented, minimal, self-contained, reproducible code. >> > > > > > -- > > -- NOTE: Prince of Songkla University will NEVER ask for your PSU > Passport/Email Username or password by e-mail. If you receive such a > message, please report it to report-ph...@psu.ac.th. > ------------------------------ > !!!! NEVER reply to any e-mail asking for your PSU Passport/Email or other > personal details. !!!! > ------------------------------ > For more information, contact the PSU E-Mail Service by dialing 2121 > > > [[alternative HTML version deleted]]
______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
