From: Paul Lutus <nospam@...>
Date: 2006-12-10T16:45:04+09:00
Subject: Re: format problem

chen li wrote:

> Hi all,
> 
> I have a 1D array containing 96 elements. I change it
> into a 2D array then print it out: each line/row is an
> element with whatever columns I want. The problem is
> that if the  column number  is < 10 I can print out
> the format that I want. If the column number is >=10 I
> still can print the results but the format is changed.
> Also I use object#inspect method to check the data
> structure: both of them are an 2D array. If the 1D
> array is defined as _1D_array=1..96 then change it to
> a 2D array no such problem happens. Any comments?

Just one. What are the data, and what result do you want?

Show examples of the data that originate in your one dimensional, 96 element
array, and show the desired output formatting.

Here is an example of what you might want, but this can only be a guess
under the circumstances:

-------------------------------------

#!/usr/bin/ruby -w

array = []

1.upto(96) { array << rand(256) }

max_cols = 10

col = 0

array.each do |item|
  printf("%4d",item)
  puts if (col += 1) % max_cols == 0
end

puts

-------------------------------------

Example output:

  88 227 250 145 115 255  93   4  91   5
 138 120  26  89 148 225  29  95  71 232
  99 166  99 250  23   2 205 147 176 221
 228  33 156  97  74 241   7 252 236  85
 120 150  46 227 175  23 250 186 151 154
   9 245 239 164 242   6  89 180  86 239
  27 141 161 251  38   7 190 195   9 106
 127 220 112  18  86 247  82  82 122 101
 109 250  70 189 224 181  87 116 238  58
 124 118  99  18 188  53

-- 
Paul Lutus
http://www.arachnoid.com