[#358392] Increase significant digits in Float — Jason Lillywhite <jason.lillywhite@...>

If I want to increase my significant digits beyond 15 in a result of a

12 messages 2010/03/02

[#358431] A gem for handling temporary file(s)? — Albert Schlef <albertschlef@...>

I'm writing a program that needs to generate two or three temporary

21 messages 2010/03/03
[#358432] Re: A gem for handling temporary file(s)? — Paul Harrington <xenogenesis@...> 2010/03/03

Albert Schlef wrote:

[#358443] Re: A gem for handling temporary file(s)? — Albert Schlef <albertschlef@...> 2010/03/03

Paul Harrington wrote:

[#358486] Re: A gem for handling temporary file(s)? — Caleb Clausen <vikkous@...> 2010/03/03

On 3/2/10, Albert Schlef <albertschlef@gmail.com> wrote:

[#358485] Test::Unit::Omission - Unable to omit tests — Champak Ch <champaka@...>

I am trying to omit some tests while using the test unit framework. My

12 messages 2010/03/03

[#358551] Shared hosting recommendation? — Rafael Vega <email.rafa@...>

Hello!

10 messages 2010/03/04

[#358559] Limit number of concurrent running threads in pool — Joe Martin <jm202@...>

Hi

14 messages 2010/03/04

[#358576] A good portable text editor/IDE for Ruby? — Reiichi Tyrael <xxreiichixx@...>

I am searching for a good portable text editor or IDE for Ruby to use on

19 messages 2010/03/05

[#358586] Base-64 encoding--Just for the fun of it! — "Aaron D. Gifford" <astounding@...>

Yes, there's always:

10 messages 2010/03/05

[#358611] On what of these books is better to start to study Ruby? — Vlad Gerasimov <refermaker@...>

I have 3 books:

12 messages 2010/03/05

[#358634] Conditional keys in hash - out of the box? — "Sven S." <svoop@...>

Hi

12 messages 2010/03/05

[#358661] Why no TextMate for Linux? — thunk <gmkoller@...>

I spent some happy development time in "VisualAge" for Smalltalk +

42 messages 2010/03/06

[#358702] win32console 1.3.0.beta2 Released — Luis Lavena <luislavena@...>

win32console version 1.3.0.beta2 has been released!

17 messages 2010/03/07

[#358757] Shortest code — Prasanth Ravi <dare.take@...>

hi i'm a newbie in ruby and was test out some interesting problems in

18 messages 2010/03/08

[#358885] reading an UTF-8 encoded file — unbewusst.sein@... (Une B騅ue)

13 messages 2010/03/10

[#359008] Dir.glob problem — David Vlad <cluny_gisslaren@...>

In the program Im making I need to read some wma files into a variable

21 messages 2010/03/12

[#359031] Newbie Help : Object — Jerome David Sallinger <imran.nazir@...>

Hello,

14 messages 2010/03/13

[#359090] Overriding new? — Andrea Dallera <andrea@...>

Hi everybody,

19 messages 2010/03/15
[#359091] Re: Overriding new? — Chuck Remes <cremes.devlist@...> 2010/03/15

[#359093] Re: Overriding new? — Andrea Dallera <andrea@...> 2010/03/15

Hei Chuck,

[#359130] Recommended way to install Rubygems — Leslie Viljoen <leslieviljoen@...>

Hi!

64 messages 2010/03/16
[#359175] Re: Recommended way to install Rubygems — Eric Hodel <drbrain@...7.net> 2010/03/17

On Mar 16, 2010, at 03:22, Leslie Viljoen wrote:

[#359176] Re: Recommended way to install Rubygems — Lucas Nussbaum <lucas@...> 2010/03/17

(Please Cc me when replying, I don't follow ruby-talk@ closely enough to

[#359183] Re: Recommended way to install Rubygems — Nick Brown <nick@...> 2010/03/18

Lucas: Thanks for maintaining the Ruby package in Ubuntu!

[#359187] Re: Recommended way to install Rubygems — Lucas Nussbaum <lucas@...> 2010/03/18

On 18/03/10 at 13:36 +0900, Nick Brown wrote:

[#359200] Re: Recommended way to install Rubygems — Nick Brown <nick@...> 2010/03/18

Lucas Nussbaum wrote:

[#359204] Re: Recommended way to install Rubygems — Lucas Nussbaum <lucas@...> 2010/03/18

On 18/03/10 at 23:05 +0900, Nick Brown wrote:

[#359210] Re: Recommended way to install Rubygems — Rick DeNatale <rick.denatale@...> 2010/03/18

On Thu, Mar 18, 2010 at 10:21 AM, Lucas Nussbaum

[#359215] Re: Recommended way to install Rubygems — Lucas Nussbaum <lucas@...> 2010/03/18

On 18/03/10 at 23:45 +0900, Rick DeNatale wrote:

[#359230] Re: Recommended way to install Rubygems — Aldric Giacomoni <aldric@...> 2010/03/18

Lucas Nussbaum wrote:

[#359233] Re: Recommended way to install Rubygems — Lucas Nussbaum <lucas@...> 2010/03/18

On 19/03/10 at 02:49 +0900, Aldric Giacomoni wrote:

[#359171] Replace Text at Specific Positions Across Files — Shiny Hydra <slotriof@...>

Hello everyone,

12 messages 2010/03/17
[#359192] Re: Replace Text at Specific Positions Across Files — Robert Klemme <shortcutter@...> 2010/03/18

2010/3/17 Shiny Hydra <slotriof@guerrillamailblock.com>:

[#359198] Re: Replace Text at Specific Positions Across Files — Shiny Hydra <slotriof@...> 2010/03/18

> So your file has fixed width records? This is important to know,

[#359255] Grouping elements of an array — Steve Wilhelm <steve@...831.com>

I have an array of records that contain timestamps at random intervals.

24 messages 2010/03/18

[#359354] Living with a Swarm of Boids - A report from the front — thunk <gmkoller@...>

Hi,

15 messages 2010/03/20

[#359388] A plugin system using extend — Jean-denis Vauguet <jd@...>

Hi.

17 messages 2010/03/21
[#359394] Re: A plugin system using extend — Josh Cheek <josh.cheek@...> 2010/03/21

On Sat, Mar 20, 2010 at 9:46 PM, Jean-denis Vauguet <jd@vauguet.fr> wrote:

[#359398] Re: A plugin system using extend — Jean-denis Vauguet <jd@...> 2010/03/21

Thank you Josh. Actually I've already tested what you wrote and that's

[#359402] Re: A plugin system using extend — Jean-denis Vauguet <jd@...> 2010/03/21

Another idea I had is the following:

[#359410] Re: A plugin system using extend — James Edward Gray II <james@...> 2010/03/21

On Mar 21, 2010, at 2:13 AM, Jean-denis Vauguet wrote:

[#359420] Reading contents of all files from a Directory — Hawksury Gear <blackhawk_932@...>

Hello,

23 messages 2010/03/21
[#359422] Re: Reading contents of all files from a Directory — Jonathan Nielsen <jonathan@...> 2010/03/21

> I am trying to "Read Content" of all the files from a Directory. So far

[#359423] Re: Reading contents of all files from a Directory — Jonathan Nielsen <jonathan@...> 2010/03/21

> arr = Dir.open("K:/test").entries

[#359464] Re: Reading contents of all files from a Directory — Robert Klemme <shortcutter@...> 2010/03/22

2010/3/21 Jonathan Nielsen <jonathan@jmnet.us>:

[#360368] Re: Reading contents of all files from a Directory — Hawksury Gear <blackhawk_932@...> 2010/04/04

> If it is only for output purposes, we can actually do it in one line:

[#360370] Re: Reading contents of all files from a Directory — Jes俍 Gabriel y Gal疣 <jgabrielygalan@...> 2010/04/04

On Sun, Apr 4, 2010 at 3:06 PM, Hawksury Gear <blackhawk_932@hotmail.com> wrote:

[#360373] Re: Reading contents of all files from a Directory — Hawksury Gear <blackhawk_932@...> 2010/04/04

Thanks for replying ,when I am doing

[#360374] Re: Reading contents of all files from a Directory — Hassan Schroeder <hassan.schroeder@...> 2010/04/04

On Sun, Apr 4, 2010 at 8:16 AM, Hawksury Gear <blackhawk_932@hotmail.com> wrote:

[#360375] Re: Reading contents of all files from a Directory — Hawksury Gear <blackhawk_932@...> 2010/04/04

Hassan Schroeder wrote:

[#359662] index of string from beginning of line vs beginning of file — "Jesse B." <jessebos@...>

I am trying to write a basic script to implement "silent comments"

10 messages 2010/03/25
[#359663] Re: index of string from beginning of line vs beginning of file — Jes俍 Gabriel y Gal疣 <jgabrielygalan@...> 2010/03/25

On Thu, Mar 25, 2010 at 5:19 PM, Jesse B. <jessebos@aol.com> wrote:

[#359684] Ruby Summer of Code 2010 — Jeremy Kemper <jeremy@...>

Fellow Rubyists, I'm proud to announce the first annual Ruby Summer of Code.

20 messages 2010/03/26
[#359985] Re: [ANN] Ruby Summer of Code 2010 — Roger Pack <rogerpack2005@...> 2010/03/30

Jeremy Kemper wrote:

[#359697] Ruby and user documentation — Michel Demazure <michel@...>

Hi all,

20 messages 2010/03/26

[#359749] Boid writeup idea — thunk <gmkoller@...>

30 messages 2010/03/26

[#359909] return number of spaces at the beginning of a line — "Jesse B." <jessebos@...>

How would I find the number of spaces at the beginning of a line before

28 messages 2010/03/30
[#359925] Re: return number of spaces at the beginning of a line — Josh Cheek <josh.cheek@...> 2010/03/30

On Mon, Mar 29, 2010 at 8:41 PM, Jesse B. <jessebos@aol.com> wrote:

[#359941] Re: return number of spaces at the beginning of a line — Robert Klemme <shortcutter@...> 2010/03/30

2010/3/30 Josh Cheek <josh.cheek@gmail.com>:

[#359945] Re: return number of spaces at the beginning of a line — "Jesse B." <jessebos@...> 2010/03/30

This second post with the "spaces only" fix seems to meet all the needs

[#359961] Re: return number of spaces at the beginning of a line — Robert Klemme <shortcutter@...> 2010/03/30

2010/3/30 Jesse B. <jessebos@aol.com>:

[#360011] RubyDictionary - First Try — Max Schmidt <max.schmidt.privat@...>

Hello folks,

12 messages 2010/03/30
[#360035] Re: RubyDictionary - First Try — Jes俍 Gabriel y Gal疣 <jgabrielygalan@...> 2010/03/31

On Wed, Mar 31, 2010 at 12:40 AM, Max Schmidt

[#360033] Playing Games with "Ruids" — thunk <gmkoller@...>

46 messages 2010/03/31

Re: sort elements

From: Ryan Davis <ryand-ruby@...>
Date: 2010-03-23 23:27:37 UTC
List: ruby-talk #359550
On Mar 23, 2010, at 03:35 , Juan Gf wrote:

> Ryan Davis wrote:
>> On Mar 23, 2010, at 02:47 , Juan Gf wrote:
>> 
>>> 2  car
>>> 1  apple
>>> 1  tree
>>> 
>>> Any ideas?
>> 
>> Read aloud what the code says, translated to natural language (English 
>> or otherwise, doesn't matter... just raise it to human thought level). 

> a = 'Apple car caR house tree ice ice ice house'
> b = a.downcase.split(' ')
> b.uniq.each do |element|
> puts "#{b.count(element)}\t#{element}"
> end

> CONVERT THE TEXT IN LOWER-CASE AND THEN SPLIT THE TEXT INTO SINGLE 
> [a list of] WORDS! THEN COUNT [and print] HOW MANY TIMES EVERY SINGLE WORD APPEARS!

I'd say that is mostly correct. You're glossing over the uniq part:

Then walk over each unique word and print how many times it occurs in the list of words.

>> Then say aloud what you want it to do, step by step. 
> 
> CONVERT THE TEXT IN LOWER-CASE AND THEN SPLIT THE TEXT INTO [a list of] SINGLE WORDS! THEN COUNT HOW MANY TIMES EVERY SINGLE WORD APPEARS! THEN SORT 
> [the list] THE RESULTS: FIRST THE MORE COMMON WORDS AND AFTER THE LESS COMMON WORDS

better.

>> What's the difference? 
> 
> the difference is "THEN SORT THE RESULTS: FIRST THE MORE COMMON WORDS 
> AND AFTER THE LESS COMMON WORDS FINALLY BLOODY COMPUTER BRING ME A 
> PIZZA!"
> 
>> Translate that difference back down to code.
> 
> I tried to use .sort like this:
> 
> "b.uniq.each do |element|
>  puts "#{(b.count(element)).sort}\t#{element}"
> end"
> 
> but obviously it doesn't work.

see how I modified your description to "THEN SORT [the list]"? That's what you're missing. You're not paying attention to what your each is iterating over. As others have pointed out, there are a lot of ways to do this, my favorite is to change the description to:

Convert the text to lower-case and split into a list of words. Create a hash to count the words (default to 0). Enumerate the list of words and increment the hash by one for every word seen. Enumerate the hash sorted by the word counts (descending) and name (ascending) and print the word and occurances.


input = 'Apple car caR house tree ice ice ice house'
count = Hash.new 0
input.downcase.split(' ').each do |word|
  count[word] += 1
end
count.sort_by { |word, count| [-count, word] }.each do |word, count|
  puts "%4d: %s" % [count, word]
end

which outputs:

   3: ice
   2: car
   2: house
   1: apple
   1: tree


In This Thread