Transcription of String manipulation with stringr : : CHEAT SHEET
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String manipulation with stringr : : CHEAT SHEET
String manipulation with stringr : : CHEAT SHEET . The stringr package provides a set of internally consistent tools for working with character strings, sequences of characters surrounded by quotation marks. Detect Matches Subset Strings Manage Lengths TRUE str_detect( String , pattern, negate = FALSE) str_sub( String , start = 1L, end = -1L) Extract 4 str_length( String ) The width of strings ( TRUE. FALSE. Detect the presence of a pattern match in a substrings from a character vector. 6. 2. number of code points, which generally equals TRUE String . Also str_like().)
ALTERNATES alt <- function(rx) str_view_all("abcde", rx) LOOK AROUNDS look <- function(rx) str_view_all("bacad", rx) INTERPRETATION Patterns in stringr are interpreted as regexs. To change this default, wrap the pattern in one of: regexp matches example (ab|d)e sets precedence alt("(ab|d)e") abcde
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