stringr v0.6.2


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by Hadley Wickham

Make it easier to work with strings.

stringr is a set of simple wrappers that make R's string functions more consistent, simpler and easier to use. It does this by ensuring that: function and argument names (and positions) are consistent, all functions deal with NA's and zero length character appropriately, and the output data structures from each function matches the input data structures of other functions.

Functions in stringr

Name Description
str_length The length of a string (in characters).
perl Use perl regular expressions.
str_dup Duplicate and concatenate strings within a character vector.
str_match Extract first matched group from a string.
str_detect Detect the presence or absence of a pattern in a string.
str_extract Extract first piece of a string that matches a pattern.
str_replace Replace first occurrence of a matched pattern in a string.
str_match_all Extract all matched groups from a string.
str_sub_replace Replace substrings in a character vector. str_sub
str_extract_all Extract all pieces of a string that match a pattern.
str_replace_all Replace all occurrences of a matched pattern in a string.
fixed Match fixed characters, not regular expression.
str_sub Extract substrings from a character vector.
str_locate_all Locate the position of all occurences of a pattern in a string.
str_c Join multiple strings into a single string. Ignore case of match.
str_split_fixed Split up a string into a fixed number of pieces.
str_split Split up a string into a variable number of pieces.
str_count Count the number of matches in a string.
str_pad Pad a string.
str_locate Locate the position of the first occurence of a pattern in a string.
str_trim Trim whitespace from start and end of string.
invert_match Switch location of matches to location of non-matches.
str_wrap Wrap strings into nicely formatted paragraphs.
word Extract words from a sentence.
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License GPL-2
Type Package
Collate 'c.r' 'checks.r' 'count.r' 'detect.r' 'dup.r' 'extract.r' 'length.r' 'locate.r' 'match.r' 'modifiers.r' 'pad-trim.r' 'replace.r' 'split.r' 'sub.r' 'vectorise.r' 'word.r' 'wrap.r' 'utils.r'
Packaged 2012-12-05 21:47:03 UTC; hadley
Repository CRAN
Date/Publication 2012-12-06 08:39:59

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