Need help with my homework

Hey Josh. Thanx for an explicit post, but I still can't get it. Would be nice
if someone would just do that maths instead of posting "forum isn't for
that". I know its for R help and that, but if I can't do it, u could, huh?

The whole point of taking a class is that _you_ learn how to do it, not me.

Problem here is, because I don't have anyone here to help me. And I can't
learn it from the guide, instructions you gave me, 1st of all, because I
can't speak English so well. I only could learn if I see finished homework.

I do not believe that.  If you cannot learn from all the manuals and
guides on the internet for R, why would finished homework be any
different?  It will just be another chunk of code written by someone
else that you do not understand.

If its forbiden to post it on forum, you can mail it to me... :)

That is not really the point, I want to encourage you to learn and I
believe that means you need to practice on your own.  If you're having
trouble figuring out what to do, try breaking it down into smaller
steps.  For example, if it is easier for you, try writing it first
using a for or while loop.  Then once you have that working, the next
step is to figure out how to replace the loop.

Josh