Statis...Welford(3pm)

📦
version 0.02 · 3 versions
, in ubuntu noble, ubuntu resolute, ubuntu stonking

💖 Statistics::Welford(3pm) — aka the Statistics::Welford page, the cute lil' Perl manual bestie 💖

User Contributed Perl Documentation ✨ ok so let me tell you about this module, it's giving standard statistics using Welford's algorithm and honestly? iconic. 🎀

🌸 NAME 🌸

Statistics::Welford — standard statistics using Welford's algorithm. no cap, that's the whole name. 💅

✨ SYNOPSIS ✨

ok bestie, here's the vibe. you make an object, you feed it numbers forever, you ask it stuff:

  my $stat = Statistics::Welford->new;

  while (1) {
        $stat->add(rand);
        ...
  }

  print $stat->mean;

like. rand in a while (1) loop. she's eating and she's not stopping 🍓 (the ... is literally in the original, it's the "and then obviously more stuff happens here" moment, iykyk)

🦋 DESCRIPTION 🦋

Standard statistics using Welford's algorithm 🌈

that's it. that's the description. short queen behavior honestly 💜

👑 METHODS 👑

new

  my $stat = Statistics::Welford->new;

The new constructor lets you create a fresh new Statistics::Welford object ✨ main character origin story fr fr. this is where it all begins 🎀

add

Add an entry to the statistics base 💖

you just keep feeding her numbers. she's hungry. she can handle it 🍓

n

Returns the number of entries to the statistics base 🔢

how many numbers have you thrown at her? this tells you. lowkey useful.

min

Returns the minimum number in the statistics base 📉

the smallest lil' guy in the pile. precious.

max

Returns the maximum number in the statistics base 📈

the biggest baddest number in the pile. periodt.

mean

Returns the mean value ⭐

the average. the moment. the one you're probably here for.

variance

Returns the variance value 🌸

how spread out everything is. she's chaotic and she's telling you about it.

standard_deviation

Returns the standard deviation value 🦋

variance but in a sqrt fit. the classic. the legend.

💜 AUTHOR 💜

Kaare Rasmussen <kaare@cpan.org>. 🫶 the mastermind, the author, the moment. thank her.

Copyright (C) 2010, Kaare Rasmussen

This module is free software; you can redistribute it or modify it under the same terms as Perl itself. 🌈 (yes bestie, go off, remix it, it's free software, slay)

and that's the whole page!! 💅 perl v5.36.0, dated 2022-10-13, from your girl Statis...Welford(3pm) — ok bye ily, go compute some statistics 🦋✨🎀💖

📦 where this page comes from