[R] Changing selected columns to factor

[Jim Lemon]

Hi Jeff,

jrdf<-data.frame(A=rnorm(10),B=rnorm(10),C=rnorm(10),
 D=rnorm(10),E=rnorm(10),F=rnorm(10),G=rnorm(10),
 H=rnorm(10),I=rnorm(10),J=rnorm(10))
for(i in c(2,7,8,9)) jrdf[,i]<-factor(jrdf[,i])
sapply(jrdf,"class")

Jim

On Tue, Jun 12, 2018 at 9:57 AM, Jeff Reichman <reichmanj using sbcglobal.net> wrote:
> R-Help Forum
>
>
>
> If I have a data frame consisting of say ten (10) variables
> (A,B,C,D,E,F,G,H,I,J) and I want to change Variables 2,7,8,and 9 to factors
> is there a command such that I can do it in one line or do I simply have to
> convert each separately?
>
>
>
> Jeff
>
>
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