I have a dataframe with a column which contains lists of two numbers. I'd like to break it into 2 columns. I found a convoluted solution, but was hoping someone could improve on it.
My solution:
column=list(c(1,2),c(3,4))
cols = list(1,length(column[[1]]))
# given a list, return the ith element
f = function(l, i) {
return(l[i])
}
# apply function f to each column
g = function(i) {
sapply(column, f, i)
}
# for each column ...
sapply(cols, g)
This gives the desired output:
[,1] [,2]
[1,] 1 2
[2,] 3 4
