[#401849] If statement — Masoud Ahmadi <lists@...>

Will anyone be able to point out what I am doing wrong.

15 messages 2012/12/02

[#401987] Trying to get "translator" to work — JD KF <lists@...>

So, basically, I'm trying to get the below code to work properly for

12 messages 2012/12/06

[#402012] Need help to select some listbox item in different listbox together — Jonathan Masato <lists@...>

Hello,

10 messages 2012/12/07

[#402045] if n belongs to set a and m belongs to set b repeat some steps, How? — "zubair a." <lists@...>

We can do so in java and similar languages like:

11 messages 2012/12/08

[#402078] Time.new(2001, 12, 3).to_i returns wrong value — Robert Buck <lists@...>

I am doing something that not many do, I am writing a database driver

9 messages 2012/12/09

[#402145] How I can create/extract a variable/hash into the current binding in Ruby? — Ramon de C Valle <rcvalle@...>

Hi,

12 messages 2012/12/12

[#402205] Wondering About Flatiron School — "Kevin Y." <lists@...>

Hi everyone!,

35 messages 2012/12/15
[#402207] Re: Wondering About Flatiron School — Chad Perrin <code@...> 2012/12/15

On Sat, Dec 15, 2012 at 11:51:08AM +0900, Kevin Y. wrote:

[#402214] Ruby quick reference arranged in ASCII sequence? — Old Grantonian <lists@...>

As a ruby beginner, I would be grateful for any links to a ruby

17 messages 2012/12/15

[#402226] print - and strip text between tags using Nokogiri — Paul Mena <lists@...>

I'm a Ruby Newbie trying to write a program to process thousands of HTML

13 messages 2012/12/15

[#402332] Perl to Ruby: regex captures to assignment. — "Derrick B." <lists@...>

Hello all,

37 messages 2012/12/19
[#402342] Re: Perl to Ruby: regex captures to assignment. — "Derrick B." <lists@...> 2012/12/20

First of all, thanks for the fast responses!

[#402352] Re: Perl to Ruby: regex captures to assignment. — Robert Klemme <shortcutter@...> 2012/12/20

On Thu, Dec 20, 2012 at 1:38 AM, Derrick B. <lists@ruby-forum.com> wrote:

[#402357] Re: Perl to Ruby: regex captures to assignment. — "Derrick B." <lists@...> 2012/12/20

Robert Klemme wrote in post #1089733:

[#402359] trying to strip characters from a line — Paul Mena <lists@...>

I'm reading a table from a MySQL database and then processing it row by

18 messages 2012/12/20

[#402394] simple division: -9 / 5 = -2 what? — "Derrick B." <lists@...>

$ irb

13 messages 2012/12/22

[#402412] POLS and string-handling — Paul Magnussen <lists@...>

Hi,

14 messages 2012/12/22

[#402460] "Open" dialog of Windows — "Damián M. González" <lists@...>

Hi guys, been researching about pop up the "open" file dialog of

11 messages 2012/12/24

[#402466] How do I install Ruby on my Ubuntu 12.10 partition. — Kaye Ng <lists@...>

I already have Ruby installed on my Windows 7 partition.

23 messages 2012/12/25

[#402510] Ruby Association Certified Ruby Programmer — Sean Westfall <lists@...>

How well respected is this certification in the industry: Ruby

27 messages 2012/12/27
[#402528] Re: Ruby Association Certified Ruby Programmer — Peter Hickman <peterhickman386@...> 2012/12/27

On 27 December 2012 01:28, Sean Westfall <lists@ruby-forum.com> wrote:

[#402555] numeric? — Brandon Weaver <keystonelemur@...>

I've found a bit of an annoyance trying to find out if a number is numeric

20 messages 2012/12/27

[#402580] Ruby Koans regarding Hashes. — "Derrick B." <lists@...>

I am trying to understand this, so let me know how I do. :) I know

18 messages 2012/12/28

[#402609] can't open new ruby program under "new" context menu — "Lee V." <lists@...>

I'm stuck on the new version at trying to do something very simple.

10 messages 2012/12/28

[#402642] require "test/unit" — "Mattias A." <lists@...>

Hi,

17 messages 2012/12/29
[#402667] Re: require "test/unit" — "Mattias A." <lists@...> 2012/12/31

Hi Dami=C3=A1n M. Gonz=C3=A1lez!

[#402747] Re: require "test/unit" — "Derrick B." <lists@...> 2013/01/04

Mattias A. wrote in post #1090700:

[#402749] Re: require "test/unit" — sto.mar@... 2013/01/04

Am 04.01.2013 19:48, schrieb Derrick B.:

Re: Dynamically create an array

From: Brandon Weaver <keystonelemur@...>
Date: 2012-12-11 07:46:10 UTC
List: ruby-talk #402125
In this type of case I'd strongly suggest looking into making a class for
subject, it saves quite a bit of time in the long run versus a hacked
together hash. As more grades and subjects are added the Hash will become
slower and more confounded to use.

I also don't entirely understand the reasoning behind your layout. Subject
should not be on the same level with the student/grade pair. It doesn't
make sense in that manner. If we put it in bullet points it's a little
clearer:

*BAD*


   - Grades
      - Subject
      - Student
         - Grade


*GOOD*
*
*

   - Grades
      - Subject
         - Students


Again, the current hierarchy makes no sense. and it would be far easier to
manipulate with a clearer structure that cleanly separates different types
of data.

The basic frame for a class would be: Grades contain many subjects, each
with several students that all have one grade. This can easily change of
course, but with the one grade system it works.

On Mon, Dec 10, 2012 at 4:58 PM, 7stud -- <lists@ruby-forum.com> wrote:

> grades = [
>   { "subject" => "english",
>     "Jim" => 94,
>     "Billy" => 58
>   },
>
>   { "subject" => "math",
>     "Jim" => 90,
>     "Billy" => 80
>   },
>
>   {  "subject" => "science",
>      "Jim" => 99,
>      "Billy" => 58
>   },
>
> ]
>
> jim = []
> billy = []
>
> grades.each do |hash|
>   jim << hash['Jim']
>   billy << hash['Billy']
> end
>
> p jim
> p billy
>
> --output:--
> [94, 90, 99]
> [58, 80, 58]
>
> --
> Posted via http://www.ruby-forum.com/.
>
>

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