strff | R Documentation |
Returns TRUE if any of the strings of 'first' occur as the first characters of the strings of 'str'.
strff(first, str, n = NULL, ignore.case = TRUE)
first |
is the string holding the 'n' characters to find as starting characters in 'str'. Only the first element of 'first' is used. |
str |
is string in which to find 'first' as starting characters. |
n |
is the number of leading characters, defaulted to the length of 'first'. |
ignore.case |
is FALSE for case sensitivity. |
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