Vector of cumulative sums in R

Question

I\'m trying to get a vector of cumulative sums, that is, I have:

    # 500 Samples from the U(0,1) Distribution
U<-runif(500,0,1)

# Empty Vector of leng         


        

Answer 1

Please correct me if I'm misunderstanding, but I believe you simply want this:

I <- cumsum(sqrt(1 - U^2))

It is unclear why you want to use for loops.