| tolower {stringr} | R Documentation |
Translate characters in character vectors, in particular
from upper to lower case or vice versa.
tolower(x);chartr translates each character in x that is specified in old
to the corresponding character specified in new. Ranges are
supported in the specifications, but character classes and
repeated characters are not. If old contains more characters than
new, an error is signaled; if it contains fewer characters, the
extra characters at the end of new are ignored.
tolower And toupper convert upper-case characters in a
character vector to lower-case, Or vice versa. Non-alphabetic
characters are left unchanged.
A character vector of the same length and with the same attributes as
x (after possible coercion).
Elements of the result will be have the encoding declared as that of
the current locale (see Encoding) if the corresponding input had a
declared encoding And the current locale Is either Latin-1 Or UTF-8.
The result will be in the current locale's encoding unless the
corresponding input was in UTF-8, when it will be in UTF-8 when the
system has Unicode wide characters.