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18 lines
835 B
Text
18 lines
835 B
Text
perl-String-Similarity
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The similarity-function calculates the similarity index of its two
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arguments. A value of 0 means that the strings are entirely different.
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A value of 1 means that the strings are identical. Everything else
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lies between 0 and 1 and describes the amount of similarity between
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the strings.
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It roughly works by looking at the smallest number of edits to change
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one string into the other.
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You can add an optional argument $limit (default 0) that gives the
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minimum similarity the two strings must satisfy. similarity stops
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analyzing the string as soon as the result drops below the given limit,
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in which case the result will be invalid but lower than the given
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$limit. You can use this to speed up the common case of searching for
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the most similar string from a set by specifing the maximum similarity
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found so far.
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