Re: [R] Standard error of combination of parameter estimates

You can use the esticon function in the doBy package. Regards Søren Fra: [EMAIL PROTECTED] på vegne af Mark Donoghoe Sendt: ma 12-05-2008 09:11 Til: r-help@r-project.org Emne: [R] Standard error of combination of parameter estimates Hi, Is there a simple

[R] Standard error of combination of parameter estimates

Hi, Is there a simple command for computing the standard error of a combination of parameter estimates in a GLM? For example: riskdata$age1 <- riskdata$age riskdata$age2 <- ifelse(riskdata$age<67,0,riskdata$age-67) model <- glm(death~age1+age2+ldl, data=riskdata,family=binomial(lin