Re^2: 2d Array - making an array for the column then adding the values

Thanks for your help. My PI doesn't want me to use any other modules other then the default ones that come installed with perl, so I can't use List::Util. I already have the the column assigned to a 1D array on line 121, but I believe it is all referenced. If I try to use this sub with a passed in @col, the total is calculated incorrectly.

sub score_count {
    my @arr = shift;
    my $total = 0;
    foreach my $score (@arr) {
      print "@$score ";       ##prints actual values; If @ taken out, 
+values printed are like ARRAY(0x95533e0)
    $total += @$score;    ##if @ is taken out the summation is somewhe
+re ~140915576; however, with the @, the values are still incorrect. 
    }
    print "$total\n";
    return $total;
}
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Are you suggesting to not even use the column slice so it's a 1D array?

Thanks for letting me know about if construct issue but I do want to skip the line if it is false so that code should be correct.

Thanks for the help

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Re^3: 2d Array - making an array for the column then adding the values by ikegami (Patriarch) on Sep 21, 2009 at 02:35 UTC
List::Util does come with Perl. Thanks for isolating the problem. I was explaining it here while you were writing your post. The only thing I didn't cover is that references evaluate to the address of the referenced item when they are treated as a number.	[reply]
Re^3: 2d Array - making an array for the column then adding the values by toolic (Bishop) on Sep 21, 2009 at 03:03 UTC
My PI doesn't want me to use any other modules other then the default ones that come installed with perl, so I can't use List::Util. Firstly, List::Util is a core module, which means that it is one of "the default ones that come installed with perl". Feel free to use it, just as you are using Getopt::Std. Update: I didn't see ikegami's comment relating to this. Secondly, even if it were not a core module, you could reuse some of the module's source code. So, tell your PI (whatever that is) to put that in his pipe and smoke it!	[reply]