Manipulate data frame inside a list

Question

this is presumably a simple question, but I have been unable to find an answer. I want to delete a column of a dataframe that is inside a list.

x1<- rnorm(1         


        

Answer 1

Instead of

l1[1] <- data.frame(l1[1])[,-1]

use

l1[[1]] <- data.frame(l1[1])[,-1]