pattern(the first argument) within each element of the string
x(the second argument) using the generalized Levenshtein edit distance (the minimal possibly weighted number of insertions, deletions and substitutions needed to transform one string into another).
agrep(pattern, x, max.distance = 0.1, costs = NULL, ignore.case = FALSE, value = FALSE, fixed = TRUE, useBytes = FALSE)agrepl(pattern, x, max.distance = 0.1, costs = NULL, ignore.case = FALSE, fixed = TRUE, useBytes = FALSE)
fixed = FALSE) to be matched. Coerced by
as.characterto a string if possible.
as.characterto a character vector if possible.
cost is not given,
all defaults to 10%, and the
other transformation number bounds default to
The component names can be abbreviated.
NULL(default) indicating using unit cost for all three possible transformations. Coerced to integer via
FALSE, the pattern matching is case sensitive and if
TRUE, case is ignored during matching.
FALSE, a vector containing the (integer) indices of the matches determined is returned and if
TRUE, a vector containing the matching elements themselves is returned.
TRUE(default), the pattern is matched literally (as is). Otherwise, it is matched as a regular expression.
agrepreturns a vector giving the indices of the elements that yielded a match, or, if
TRUE, the matched elements (after coercion, preserving names but no other attributes).
agreplreturns a logical vector.
tre by Ville Laurikari
(http://laurikari.net/tre/), which supports MBCS
The main effect of
useBytes is to avoid errors/warnings about
invalid inputs and spurious matches in multibyte locales.
It inhibits the conversion of inputs with marked encodings, and is
forced if any input is found which is marked as
agrep("lasy", "1 lazy 2") agrep("lasy", c(" 1 lazy 2", "1 lasy 2"), max = list(sub = 0)) agrep("laysy", c("1 lazy", "1", "1 LAZY"), max = 2) agrep("laysy", c("1 lazy", "1", "1 LAZY"), max = 2, value = TRUE) agrep("laysy", c("1 lazy", "1", "1 LAZY"), max = 2, ignore.case = TRUE)
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