Your idea is not clear and foggy, you forgot to tell something more.
Current dialog is this:
I need to implement an algorithm
Cool, then start doing it!
multivariate linear regression
What is that? Looks like copied from some science book, which doesn't make sense at all.
mylinregNasm(Xy, result, m, n)
What is that? Doesn't looks like C or Assembly.
VECTOR result= get_block(sizeof(float),n);
What is VECTOR and get_block?
Could some skilled NASM developer help me?
With what? Maybe let's start with rewriting all of that what you actually want to accomplish.
How about this: "I need someone implement '#$@%^' algorithm, because i'm too lazy.".
Do really someone would like to help you, with that kind'a task description?
Hmm.... Let me think.. NO!