This should work
#!/usr/bin/perl
use strict;
use warnings;
open IN, 'data.txt' or die$!;
my @colSum;
while(<IN>){
chomp($_);
my @colArray = split(/\s/,$_);
for(my $i = 0; $i <= $#colArray; $i++){
$colSum[$i] += int($colArray[$i]);
}
}
foreach my $ j(0 .. $#colSum){
print "Sum for column",$j,"is: ",$colSum[$j],"\n";
}
What you were trying to do was not correct. You were taking the entire line and was adding to another line. $_ takes it as a string and if you convert into a int type also then it will not convert according to your logic because there will be spaces between them. Therefore, you need to take it into an array and compute the sum of column by adding to the previous element using loop.
-
Are you posting in the right place? Check out Where do I post X? to know for sure.
-
Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big>
<blockquote> <br /> <dd>
<dl> <dt> <em> <font>
<h1> <h2> <h3> <h4>
<h5> <h6> <hr /> <i>
<li> <nbsp> <ol> <p>
<small> <strike> <strong>
<sub> <sup> <table>
<td> <th> <tr> <tt>
<u> <ul>
-
Snippets of code should be wrapped in
<code> tags not
<pre> tags. In fact, <pre>
tags should generally be avoided. If they must
be used, extreme care should be
taken to ensure that their contents do not
have long lines (<70 chars), in order to prevent
horizontal scrolling (and possible janitor
intervention).
-
Want more info? How to link
or How to display code and escape characters
are good places to start.
|