The Cologne phonetic name coding procedure.
cologne(word, maxCodeLen = NULL, clean = TRUE)| word | string or vector of strings to encode |
|---|---|
| maxCodeLen | maximum length of the resulting encodings, in characters |
| clean | if |
the Cologne encoded character vector
The variable word is the name to be encoded. The variable
maxCodeLen is the limit on how long the returned name code
should be. The default is 4.
The cologne algorithm is only defined for inputs over the
standard English alphabet, i.e., "A-Z," "Ä," "Ö," "Ü," and
"ß." Non-alphabetical characters are removed from the string in a
locale-dependent fashion. This strips spaces, hyphens, and numbers.
Other letters, such as "ç," may be permissible in the current locale
but are unknown to cologne. For inputs outside of its known
range, the output is undefined and NA is returned and a
warning this thrown. If clean is FALSE,
cologne attempts to process the strings. The default is
TRUE.
James P. Howard, II, "Phonetic Spelling Algorithm Implementations for R," Journal of Statistical Software, vol. 25, no. 8, (2020), p. 1--21, <10.18637/jss.v095.i08>.
Hans Joachim Postel. "Die Koelner Phonetik. Ein Verfahren zur Identifizierung von Personennamen auf der Grundlage der Gestaltanalyse." IBM-Nachrichten 19. Jahrgang, 1969, p. 925-931.
Other phonics:
caverphone(),
lein(),
metaphone(),
mra_encode(),
nysiis(),
onca(),
phonex(),
phonics(),
rogerroot(),
soundex(),
statcan()
cologne("William")
#> [1] "356"
cologne(c("Peter", "Peady"))
#> [1] "127" "12"
cologne("Stevenson", maxCodeLen = 8)
#> [1] "823686"