From: "Eustáquio 'TaQ' Rangel" <eustaquiorangel@...>
Date: 2007-11-14T01:20:52+09:00
Subject: Re: reading a column formatted data

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Hi.

> Depending on the column number, these strings (Fair, Excellent, etc)
> must be given a different weight, multiplied by the number of these
> strings  occurrences in a column and an index is to be calculated.
> what is the best approach in ruby?

Don't know if it's the best but:

weight	= {0=>1,1=>2,2=>3}
scale	= {"Poor"=>1,"Fair"=>2,"Excellent"=>3}

File.open("suresh.txt").each do |line|
	value, (name, *values) = 0, line.split
	values.each_with_index {|item,index| value += weight[index]*scale[item]}
	puts "[#{name}] [#{values.join(',')}] [#{value}]"
end

> suresh

Wow! Dr. Suresh from Heroes??? :-)

- --
Eust�quio "TaQ" Rangel
http://eustaquiorangel.com

"Premature optimisation is the root of all evil."
Donald Knuth
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