r - Simulate array with scatter & known relation to X -

this basic r question, can't seem find right packages want.

i have array 'x', n values. want simulate array, 'y', follows known relation y = alpha + beta*x. furthermore, want add intrinsic scatter y array. alpha, beta, , intrinsic scatter should input values user.

can me how go doing this?

thanks!

here function creates deterministic part of correlation , adds noise via rnorm

make_correlation <- function(alpha, beta, scatter, x){   # make deterministic part   y_det <- alpha + beta*x   # add noise   y <- rnorm(length(x), y_det, scatter)   return(y) }  set.seed(20) x <- runif(20, 0, 10)  answer <- make_correlation(alpha = 2, beta = 3, scatter = 2, x) 

plot(answer~x)