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StringDistances.jl
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return 0 if empty

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matthieugomez 2015-11-03 13:09:10 -05:00
parent 9e21ec1f33
commit e1d69ccfb0
1 changed files with 2 additions and 2 deletions
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src/edit.jl
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@ -168,7 +168,7 @@ damerau_levenshtein(s1::AbstractString, s2::AbstractString) = evaluate(DamerauLe
type Jaro <: SemiMetric end
function evaluate(dist::Jaro, s1::AbstractString, s2::AbstractString, len1::Integer, len2::Integer)
len2 == 0 && return 1.0
len2 == 0 && return 0.0
maxdist = max(0, div(len2, 2) - 1)
m = 0 # matching characters
@ -204,7 +204,7 @@ function evaluate(dist::Jaro, s1::AbstractString, s2::AbstractString, len1::Inte
end
m == 0.0 && return 1.0
score = (m / len1 + m / len2 + (m - t) / m) / 3.0
return 1 - score
return 1.0 - score
end
jaro(s1::AbstractString, s2::AbstractString) = evaluate(Jaro(), s1, s2)