Statis...c::Mean(3pm)

✨ Statistics::Basic::Mean ✨

okay bestie, so this is a page from the User Contributed Perl Documentation manual, and it's literally all about Statistics::Basic::Mean 💖 — the lil module that finds the mean of a list. yes, THE mean. the average. the vibe check on your numbers. let's get into it 🫶

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💅 NAME

Statistics::Basic::Mean — find the mean of a list ✨

🌸 SYNOPSIS

Invoke it this way, bestie:

my $avg = mean(1,2,3);

Or this way, if you're feeling fancy:

my $v1  = vector(1,2,3);
my $avg = avg($v1);

And then either query the values or print them like so:

print "The mean of $v1: $avg\n";
my $mq = $avg->query;
my $m0 = 0+$avg;

Create a 20 point moving average like so 👑:

use Statistics::Basic qw(:all nofill);

my $sth = $dbh->prepare("select col1 from data where something");
my $len = 20;
my $avg = mean()->set_size($len);

$sth->execute or die $dbh->errstr;
$sth->bind_columns( my $val ) or die $dbh->errstr;

while( $sth->fetch ) {
    $avg->insert( $val );
    if( defined( my $m = $avg->query ) ) {
        print "Mean: $m\n";
    }

    # This would also work:
    # print "Mean: $avg\n" if $avg->query_filled;
}

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🎀 METHODS

• new() — the constructor, periodt. it takes a single array ref or a single Statistics::Basic::Vector as its arguments, and it hands you back a Statistics::Basic::Mean object ✨

Note: normally you'd use the mean() constructor, rather than building these by hand using "new()". just saying 💖

• _OVB::import() — this module also inherits all the overloads and methods from Statistics::Basic::_OneVectorBase. iconic behavior honestly 🌈

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🦋 OVERLOADS

This object is overloaded, bestie. it tries to return an appropriate string for the calculation, or the value of the computation in numeric context. it's giving versatility 💅

In boolean context, this object is always true — even when it's empty. no cap, always. 🙈

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💜 AUTHOR

Paul Miller "<jettero@cpan.org>" 👑

📜 COPYRIGHT

Copyright 2012 Paul Miller -- Licensed under the LGPL 💖

🔥 SEE ALSO

perl(1), Statistics::Basic, Statistics::Basic::_OneVectorBase, Statistics::Basic::Vector 🌟

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and that's the whole page bestie!! 🎀 this was perl v5.36.0, dated 2022-11-19, from the User Contributed Perl Documentation — mwah, go forth and average things 💖✨🫶