Jaro-Winkler distance: Difference between revisions
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which | 0.1200
</pre>
=={{header|Raku}}==
{{works with|Rakudo|2020.07}}
A minor modification of the [[Jaro_distance#Raku|Jaro distance]] task entry.
using the unixdict.txt file from www.puzzlers.org
<lang perl6>sub jaro-winkler ($s, $t) {
return 0 if $s eq $t;
my $s_len = + my @s = $s.comb;
my $t_len = + my @t = $t.comb;
my $match_distance = ($s_len max $t_len) div 2 - 1;
my @s_matches;
my @t_matches;
my $matches = 0;
for ^@s -> $i {
my $start = 0 max $i - $match_distance;
my $end = $i + $match_distance min ($t_len - 1);
for $start .. $end -> $j {
@t_matches[$j] and next;
@s[$i] eq @t[$j] or next;
@s_matches[$i] = 1;
@t_matches[$j] = 1;
$matches++;
last;
}
}
return 1 if $matches == 0;
my $k = 0;
my $transpositions = 0;
for ^@s -> $i {
@s_matches[$i] or next;
until @t_matches[$k] { ++$k }
@s[$i] eq @t[$k] or ++$transpositions;
++$k;
}
my $prefix = 0;
++$prefix if @s[$_] eq @t[$_] for ^(min 4, $s_len, $t_len);
my $jaro = ($matches / $s_len + $matches / $t_len +
(($matches - $transpositions / 2) / $matches)) / 3;
1 - ($jaro + $prefix * .1 * ( 1 - $jaro) )
}
my @words = './unixdict.txt'.IO.slurp.words;
for <accomodate definately goverment occured publically recieve seperate untill wich>
-> $word {
my %result = @words.race.map: { $_ => jaro-winkler($word, $_) };
say "\nClosest 5 dictionary words with a Jaro-Winkler distance < .15 from $word:";
printf "%15s : %0.4f\n", .key, .value for %result.grep({ .value < .15 }).sort({+.value, ~.key}).head(5);
}</lang>
{{out}}
<pre>Closest 5 dictionary words with a Jaro-Winkler distance < .15 from accomodate:
accommodate : 0.0182
accordant : 0.1044
accolade : 0.1136
acclimate : 0.1219
accompanist : 0.1327
Closest 5 dictionary words with a Jaro-Winkler distance < .15 from definately:
define : 0.0800
definite : 0.0850
defiant : 0.0886
definitive : 0.1200
designate : 0.1219
Closest 5 dictionary words with a Jaro-Winkler distance < .15 from goverment:
govern : 0.0667
governor : 0.1167
governess : 0.1175
governance : 0.1330
coverlet : 0.1361
Closest 5 dictionary words with a Jaro-Winkler distance < .15 from occured:
occurred : 0.0250
occur : 0.0571
occurrent : 0.0952
occlude : 0.1056
concurred : 0.1217
Closest 5 dictionary words with a Jaro-Winkler distance < .15 from publically:
public : 0.0800
publication : 0.1327
pull : 0.1400
pullback : 0.1492
Closest 5 dictionary words with a Jaro-Winkler distance < .15 from recieve:
receive : 0.0333
relieve : 0.0667
reeve : 0.0762
receptive : 0.0852
recessive : 0.0852
Closest 5 dictionary words with a Jaro-Winkler distance < .15 from seperate:
desperate : 0.0708
separate : 0.0917
temperate : 0.1042
selenate : 0.1167
sept : 0.1167
Closest 5 dictionary words with a Jaro-Winkler distance < .15 from untill:
until : 0.0333
till : 0.1111
huntsville : 0.1333
instill : 0.1357
unital : 0.1422
Closest 5 dictionary words with a Jaro-Winkler distance < .15 from wich:
winch : 0.0533
witch : 0.0533
which : 0.0600
wichita : 0.0857
switch : 0.1111</pre>
=={{header|Rust}}==
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