New Post: Function of vectors

I come from an R background and would like to translate this little R function

kld = function(p,q) ifelse(p == 0 | q == 0, 0, log(p/q)*p)

into F# using Math.NET vectors.

I got as far as this:

let f1 (p:float, q:float) =

if p = 0.0 || q = 0.0 then 0.0
else log(p / q) * p

But unlike R, this function is not vectorized.

p and q should be vectors, and the result should be a vector, too.

I tried

let f2 (p:Vector<float>, q:Vector<float>) =

but didn't get anywhere.