Dear R-helpers:
I am an R novice and would appreciate answer to the following question.
Want to delete many variables in a dataframe.
Am able to delete one variable by assigning it as NULL
Have a large number of variables and would like to delete them without using
a for loop.
Is there a command/function which does this job?
Many thanks in advance.
-Sean
#Small Example:
df<-data.frame(var.a=rnorm(10), var.b=rnorm(10),var.c=rnorm(10))
df[,'var.a']<-NULL #this works for one single variable
df[,c('var.a','var.b')]<-NULL #does not work for multiple variables
[[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.
