I want to count the occurrence of specific value in array, the array as below.
my @array = (-1.001, -7.032, -5.013, 8.412, -1.500, 3.412)
The expected result For value under zero count = 4
For value under minus 5 count = 2
How can I get it using Perl, Any Idea?
You can use grep to filter elements, and use it in scalar context when it returns number of list elements which passed the filter,
my $count1 = grep { $_ < 0 } @array;
my $count2 = grep { $_ < -5 } @array;
another way is to use foreach loop,
my $count1 = 0;
my $count2 = 0;
for (@array) {
$count1++ if $_ < 0;
$count2++ if $_ < -5;
}
