The Perl script has to load in a CSV data file and sum up all the numbers in the file. There are only numbers in the file separated by commas and newlines. I have the bulk of the code done, but I am not getting the correct total. I might be overlooking something or have a fundamental misunderstanding of a concept or two, and any help would be greatly appreciated.
Example CSV data to be all summed up:
2, 6, 7, 10, 12
15, 22, 13
11, 4
1
The sum should be 103.
I have to use while(<>) and split to read in the data, and the code must be at a level that a newbie could produce, so please no advanced code unless absolutely necessary.
Here is my code:
use strict;
use warnings;
while (<>) {
chomp;
my $total = 0;
my @array1 = split(',');
foreach my $i (@array1){
$total += $i;
}
print $total;
}
The $total variable ends up containing the sums of each row of the array as one number, and I am struggling to figure out how I can rewrite this to make it do what I want it to. Any help is greatly appreciated. Also, if the supplied code could be aimed at a newb (similar to what I have provided), that would be great.
Move the initialization of the total before the loop, and move the print after the loop:
use strict;
use warnings;
my $total = 0;
while (<DATA>) {
chomp;
my @array1 = split(',');
foreach my $i (@array1) {
$total += $i;
}
}
print $total;
print "\n";
__DATA__
2, 6, 7, 10, 12
15, 22, 13
11, 4
1
Your code resets the total after each line of your input.