Re: [R] How to point a column of dataframe by a "character"

On Wed, Jul 28, 2010 at 8:59 AM, Joshua Wiley wrote: > Hi Tony, > > I am sure there are other ways, but I would create formula objects and > then pass them to lm().  Here's an example: > > mydata <- data.frame(Y = 1:10, X1 = 11:20, X2 = 21:30) > > my.names <- names(mydata)[-1] > > for(i in my.name

Re: [R] How to point a column of dataframe by a "character"

Hi Tony, I am sure there are other ways, but I would create formula objects and then pass them to lm(). Here's an example: mydata <- data.frame(Y = 1:10, X1 = 11:20, X2 = 21:30) my.names <- names(mydata)[-1] for(i in my.names) { my.formula <- formula(paste("Y ~ ", i, sep = "")) my.lm <- lm

[R] How to point a column of dataframe by a "character"

Hello, Here is a dilemma I am having for a long time. But, I couldn't figure it out. I have an vector of Y and a data frame named "data",which contains all Xs. I tried to be more efficient in fitting a simple linear regression with each X. Firstly, for (i in 1:(dim(data)[2])){ model<-lm(Y~data[,