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The package offers the following main functions:
stringdist
computes pairwise distances between two input character vectors (shorter one is recycled)stringdistmatrix
computes the distance matrix for one or two vectorsstringsim
computes a string similarity between 0 and 1, based on stringdist
amatch
is a fuzzy matching equivalent of R's native match
functionain
is a fuzzy matching equivalent of R's native %in%
operatorseq_dist
, seq_distmatrix
, seq_amatch
and seq_ain
for distances between, and matching of integer sequences. These functions are built upon C
-code that re-implements some common (weighted) string
distance functions. Distance functions include:
Also, there are some utility functions:
qgrams()
tabulates the qgrams in one or more character
vectors.seq_qrams()
tabulates the qgrams (somtimes called ngrams) in one or more integer
vectors.phonetic()
computes phonetic codes of strings (currently only soundex)printable_ascii()
is a utility function that detects non-printable ascii or non-ascii characters.Some of stringdist
's underlying C
functions can be called directly from
C
code in other packages. The description of the API can be found by either
typing ?stringdist_api
in the R console or open the vignette directly as follows:
vignette("stringdist_C-Cpp_api", package="stringdist")
Examples of packages that link to stringdist
can be found
here and
here.
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