Update 2:

Here is a first simple solution. Anybody needs a starting point:

#!/usr/bin/env perl

use strict;
use warnings;
use feature qw(say);
use Data::Dump;
use Lingua::Stem qw(stem);

undef $/;

my $text = <DATA>;

say $text;

$text = lc $text;

$text =~ s/\n+/ /g;

say $text;

$text  =~ s/[:;'!?.,]+//g;

say $text;

my @words = split / /, $text;

dd \@words;

Lingua::Stem::set_locale('de');

say Lingua::Stem::get_locale;

my $stems = stem(@words);

dd $stems;

my %vocabulary = map {$_ => 1} @$stems;

dd  \%vocabulary;

say scalar keys %vocabulary;


__DATA__
Ich Bin Der Geist, Der Stets Verneint!
Und Das Mit Recht; denn alles, was entsteht,
Ist wert, daß es zugrunde geht;
Drum besser wär's, daß nichts entstünde.
So ist denn alles, was ihr Sünde,
Zerstörung, kurz, das Böse nennt,
Mein eigentliches Element.

[download]

It isn't so easy as one might think: Simply counting the words with wc doesn't return the vocabulary. And Lingua::Stem thinks that Ist and ist are different stems for example. And how to filter out the real text from sources which contain a preface, index, bla? And so on.

Some may ask why i waste my time with this issue. It has to do with politics. As this isn't a forum about politics i skip the details.

I was a little bit inspired by what Jill Lepore analogously wrote about facts in her splendid book These Truths: A History of the United States about facts: "Show me yours and i'll show you mine." Basically the same game that we played with our cousins when we were nasty little boys. Discussion later.

«The Crux of the Biscuit is the Apostrophe»

In reply to Re: How to count the vocabulary of an author? by karlgoethebier
in thread How to count the vocabulary of an author? by karlgoethebier

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