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README  view on Meta::CPAN

You can find more about the likeliness of the results to be accurate by
computing its confidence level.

  use Lingua::Identify qw/:language_identification/;
  my @results = langof($text);
  my $confidence_level = confidence(@results);
  # $confidence_level now holds a value between 0.5 and 1; the higher that
  # value, the more accurate the results seem to be

The formula used is pretty simple: p1 / (p1 + p2) , where p1 is the
probability of the most likely language and p2 is the probability of
the language which came in second. A couple of examples to illustrate
this:

English 50% Portuguese 10% ...

confidence level: 50 / (50 + 10) = 0.83

Another example:

lib/Lingua/Identify.pm  view on Meta::CPAN

You can find more about the likeliness of the results to be accurate by
computing its confidence level.

  use Lingua::Identify qw/:language_identification/;
  my @results = langof($text);
  my $confidence_level = confidence(@results);
  # $confidence_level now holds a value between 0.5 and 1; the higher that
  # value, the more accurate the results seem to be

The formula used is pretty simple: p1 / (p1 + p2) , where p1 is the
probability of the most likely language and p2 is the probability of
the language which came in second. A couple of examples to illustrate
this:

English 50% Portuguese 10% ...

confidence level: 50 / (50 + 10) = 0.83

Another example: