I have a function f(var1, var2) in R. Suppose we set var2 = 1 and now I want to apply the function f() to the list L. Basically I want to get a new list L* with the outputs
[f(L[1],1),f(L[2],1),...,f(L[n],1)]
How do I do this with either apply, mapply or lapply?
To further generalize @Alexander's example, outer is relevant in cases where a function must compute itself on each pair of vector values:
vars1 <- c(1,2,3)
vars2 <- c(10,20,30)
mult_one <- function(var1, var2)
{
var1*var2
}
outer(vars1, vars2, mult_one)
gives:
> outer(vars1, vars2, mult_one)
[,1] [,2] [,3]
[1,] 10 20 30
[2,] 20 40 60
[3,] 30 60 90