From: John Nott <JNott@...>
Date: 2007-10-08T23:10:48+09:00
Subject: Re: MATRIX PROBLEMS (AGAIN!)

Hi!
This seems to work very well thanks but the results are produced in a long string. Is it possible to create these figures as a matrix? (resembling something like excel)
Thanks for your help.
- John

-----Original Message-----
From: list-bounce@example.com [mailto:list-bounce@example.com]On Behalf
Of 7stud --
Sent: 08 October 2007 15:02
To: ruby-talk ML
Subject: Re: MATRIX PROBLEMS (AGAIN!)


7stud -- wrote:
> 
> But that is poorly written code; I can see that you copied it off the OT 
> website.  Instead, you can write something like this:
> 
> results = []
> 
> File.open("data.txt") do |file|
>   file.each_line(',') do |field|
>       results << field.to_i
>   end
> end
> 
> p results
> -->[10, 20, 30, 50, 60]
> 

Whoops.  That doesn't work because the end of a line is not a comma so 
the last field on a line is combined into a string with the first field 
on the next line, which mucks up the results.  You could do something 
like this instead:

results = []

File.open("data.txt") do |file|
  file.each_line() do |record|
    fields = record.split(",")
    fields.each do |field|
      results << field.to_i
    end
  end
end

p results

-- 
Posted via http://www.ruby-forum.com/.


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