I wonder if there is a way to add a "0" to every element of a R-list at the first position.
mylist <- list (a = 1:5, b = 11:15)
I'm looking for an easy way that produces the following result:
mylist[[1]]
[1] 0 1 2 3 4 5
mylist[[2]]
[1] 0 11 12 13 14 15
Of course my list has much more objects than just two.
lapply
takes a list as an argument, applies a function to each element and returns a list of the results
lapply( mylist , function(x) c(0,x))
$a
[1] 0 1 2 3 4 5
$b
[1] 0 11 12 13 14 15