Lodestar.Fuzzy 0.4.0. This page is frozen at that release. Read the current documentation for what main says now. A link to a decision or a migration page follows main, and leaves the archive.

Fuzz.PartialRatio

The best-matching window of the longer string.

public static double PartialRatio(string a, string b)

Parameters — a and b are the strings to compare; which is longer does not matter.

Returns — double in [0, 100], the best Ratio over any window of the longer string as long as the shorter.

Example — a short string contained in a longer one.

using Lodestar.Fuzzy;

double contained = Fuzz.PartialRatio("apple", "an apple a day");  // => 100

Remarks — 100, because apple appears verbatim inside the longer string. Ratio on the same pair is far lower, and both are correct: one asks "are these the same string", the other "does the short one occur in the long one".

Reach for it when one side is a fragment — a search box against titles, a product name against a description. Do not reach for it when the two are the same kind of thing, because it will happily score 100 for a short string that matches a small part of a long one and means something else.

Applies to — net10.0, netstandard2.0.

See also — Fuzz.Ratio, Fuzz.PartialTokenSortRatio.