You should loop over all lt values and find the mininimum and maximum values, or you can cheat and use List::Util to give you minimum and maximum from a list

However, this looks wrong:

my @values = $e->{lt};
You'll get just one value. Try this for starters: 
my @values;
foreach my $e (@{$data->{httpSample}})
{
    push @values, $e->{lt};
    print "Lt_Value: ", $e->{lt}, "\n";
}

[download]
Now you have an array of all values in @values. The rest is now a piece of cake (you'll have to install Scalar-List-Utils if you don't have it already): 
use List::Util qw(min max sum);

print "Min Lt_Value: ", min(@values), "\n";
print "Max Lt_Value: ", max(@values), "\n";

if(@values) {
    print "Average Lt_Value: ", (sum(@values)/@values), "\n";
} else {
    print "No values so no average.\n";
}

[download]
n.b. List::Util doesn't have an average() or avg() function, so I have to emulate one using sum() and dividing by the number of elements.

In reply to Re: find min, max and average by bart
in thread find min, max and average by techtween

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