blib/lib/Set/Similarity/BV/Cosine.pm | |||
---|---|---|---|
Criterion | Covered | Total | % |
statement | 11 | 11 | 100.0 |
branch | n/a | ||
condition | n/a | ||
subroutine | 4 | 4 | 100.0 |
pod | 1 | 1 | 100.0 |
total | 16 | 16 | 100.0 |
line | stmt | bran | cond | sub | pod | time | code |
---|---|---|---|---|---|---|---|
1 | package Set::Similarity::BV::Cosine; | ||||||
2 | |||||||
3 | 1 | 1 | 617 | use strict; | |||
1 | 2 | ||||||
1 | 28 | ||||||
4 | 1 | 1 | 3 | use warnings; | |||
1 | 2 | ||||||
1 | 27 | ||||||
5 | |||||||
6 | 1 | 1 | 437 | use parent 'Set::Similarity::BV'; | |||
1 | 276 | ||||||
1 | 6 | ||||||
7 | |||||||
8 | our $VERSION = '0.04'; | ||||||
9 | |||||||
10 | sub from_integers { | ||||||
11 | 6 | 6 | 1 | 6 | my ($self, $v1, $v2) = @_; | ||
12 | |||||||
13 | # it is so simple because the vectors contain only 0 and 1 | ||||||
14 | return ( | ||||||
15 | 6 | 16 | $self->intersection($v1,$v2) / ( | ||||
16 | sqrt($self->bits($v1)) * sqrt($self->bits($v1)) | ||||||
17 | ) | ||||||
18 | ); | ||||||
19 | } | ||||||
20 | |||||||
21 | 1; | ||||||
22 | |||||||
23 | __END__ |