NAME

Data::Average - Hold Data Set To Calculate Average

SYNOPSIS

  use Data::Average::Expires;

  my $data = Data::Average::Expires->new(expires_in => 10);
  $data->add($_) for (1..100);

  print $data->avg; # 55

  # sleep for more than 10 seconds...
  sleep(15);
  print $data->length; # 0

  $data->add(Data::Average::Expires::Item->new(expires_in => 60, value => 200));

DESCRIPTION

Data::Average::Expires only takes into account values that haven't expired: for example, you can track the average value of something for the last 10 minutes using this module.

METHODS

new(expires_in => $expires_in)

Creates a new Data::Average object, with default expire time set to the value denoted by $expires_in

add($value)

Adds a value to the Data::Average::Expires set.

$value may be a scalar or a Data::Average::Expires::Item object. Items are always checked for expiry before each operation.

length()

avg()

Same as Data::Average.

AUTHOR

Copyright (c) 2006 Daisuke Maki <dmaki@cpan.org> All rights reserved.