in reply to Using map

map processes a list and returns a list, so you need to assign the list back to your @data array (or a new array). 

  @data = map { #? data is skiped when plotted
   if($maxreject[$i]) {
  $_ = "?$_" if($_ > $maxclip);
   }
   if($minreject[$i]) {
  $_ = "?$_" if($_ < $minclip);
   }
   $i++;
  } @data;

[download]

That said, a for loop might be a better choice, but it should work.

Cor! Like yer ring! ... HALO dammit! ... 'Ave it yer way! Hal-lo, Mister la-de-da. ... Like yer ring!

Replies are listed 'Best First'.
Re: Re: Using map
by maderman (Beadle) on Oct 22, 2002 at 06:19 UTC
    Thanks for the quick response! However, assigning @array = map {} @data produces the following in my data: 
    07/01 09:09:57 0 1 2 3 4 5
07/01 09:14:56 0 1 2 3 4 5
07/01 09:19:58 0 1 2 3 4 5
07/01 09:24:58 0 1 2 3 4 5
07/01 09:29:58 0 1 2 3 4 5
07/01 09:34:58 0 1 2 3 4 5

    [download]
    Hmm.
[reply]
[d/l]

      Sorry! Take another look, I've updated the previous answer.

      With map, the value that gets passed out it the last value in the code block. In your case it was the $i++ expression, hence the counts you got. Add the new last line I indicate above and it should fix that. I didn't notice that the first time.

      I still think this is an iffy use of map though.

      Cor! Like yer ring! ... HALO dammit! ... 'Ave it yer way! Hal-lo, Mister la-de-da. ... Like yer ring!
[reply]
[d/l]

In Section Seekers of Perl Wisdom