[R] How to pass a variable to a function which use variable name as a parameter

There are functions which use variable names as parameters in some R packages. However, if the variable name is stored in another variable, how can I pass this variable to the function. Taking the "rms" package as an example: library(rms) n <- 1000 age <- rnorm(n, 50, 10) sex <- factor(sample(c('f

Re: [R] How to pass a variable to a function which use variable name as a parameter

On Tue, May 26, 2015 at 5:14 AM, wong jane wrote: > There are functions which use variable names as parameters in some R > packages. However, if the variable name is stored in another variable, how > can I pass this variable to the function. Taking the "rms" package as an > example: > > ​​ > libr

Re: [R] How to pass a variable to a function which use variable name as a parameter

One way to use variable names in functions like Predict() that do not evaluate their arguments in the standard way is to use do.call() along with as.name(). E.g., varName<-"age" do.call("Predict", list(fit, as.name(varName), np=4))}) gives the same result as Predict(fit, age, np=4) Bill D

Re: [R] How to pass a variable to a function which use variable name as a parameter

On May 26, 2015, at 8:30 AM, William Dunlap wrote: > One way to use variable names in functions like Predict() that > do not evaluate their arguments in the standard way is to use > do.call() along with as.name(). E.g., > varName<-"age" > do.call("Predict", list(fit, as.name(varName), np=4))})