unique elements in array

[Simon K. Chan]

Hi All,

The solution to my question is probably dead easy, but the bioperl module I'm working 
on right now
has sucked up all by brain juice! ;-)

Let's say I have this array:

@food = qw(milk ham eggs bread eggs milk);

How can I write a script that sticks all UNIQUE elements (occurs only once) into 
another array?
So, in the above case, @another_array would receive "ham" and "bread"

Many thanks for your time, Everybody!

=
#

Warmest Regards,
Simon K. Chan - [EMAIL PROTECTED]

"Great spirits have always encountered violent opposition from mediocre minds."  - 
Albert Einstein

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Re: unique elements in array

[Jeff 'japhy' Pinyan]

On Feb 26, Simon K. Chan said:

>The solution to my question is probably dead easy, but the bioperl
>module I'm working on right now has sucked up all by brain juice! ;-)
>
>Let's say I have this array:
>
>@food = qw(milk ham eggs bread eggs milk);
>
>How can I write a script that sticks all UNIQUE elements (occurs only once) into 
>another array?
>So, in the above case, @another_array would receive "ham" and "bread"

You'll want to use a hash:

  $count{$_}++ for @food;
  @unique = grep $count{$_} == 1, keys %count;

Hashes are the answer to many questions.

-- 
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