From: Axel Etzold <AEtzold@...>
Date: 2008-08-16T06:48:37+09:00
Subject: Re: im new... so can i have some help



Dear Daniel.

> im new to ruby...... and i need some help!

welcome to Ruby. You'll find help on this list :)

> im trying to make  a quick app that takes an array of #'s
> puts them into a specific order ( i thik ill use the method "list" for
> that?"

Use sort for that ( http://www.ruby-doc.org/core/classes/Array.html#M002208)

> and gets the mean, median and mode of the array of numbers?

There's Array#inject for summing, median is the middle of the sorted Array,
and modes are elements that are equal to Array#max.

I'd suggest you go through Chris Pine's little tutorial for Ruby: 

http://pine.fm/LearnToProgram/

or, if you have some love for comics ... and more time ... 

http://poignantguide.net/ruby/

to get an impression of the language.
Also, there are many quizzes for Ruby with different solutions to a problem:

http://rubyquiz.com/

And of course, many excellent books, and readily written software packages (in your case,
search e.g., for the statistics2 package on the RAA (Ruby Application Archive).

Best regards,

Axel 


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