old in
text
to the corresponding character in
new. If multichar=T
or
old and
new have more than one element, or each have one element
but they have different numbers of characters,
uses the UNIX
sed command to translate the series of characters in
old
to the series in
new when these characters occur in
text.
If
old or
new contain a backslash, you sometimes have to quadruple
it to make the UNIX command work. If they contain a forward slash,
preceed it by two backslashes. The Microsoft Windows version of
translate
invokes the
sedit() function and does not allow
multichar=FALSE
, i.e., it does not support the UNIX
tr function.
The R version of
translate invokes the builtin chartr function if
multichar=FALSE
.
translate(text, old, new, multichar=FALSE)
At present,
multichar=FALSE, which requires the UNIX
tr program, is not
implemented under MS Windows.
translate(c("ABC","DEF"),"ABCDEFG", "abcdefg")
translate("23.12","[.]","\\\cdot ") # change . to \cdot
translate(c("dog","cat","tiger"),c("dog","cat"),c("DOG","CAT"))
# S-Plus gives [1] "DOG" "CAT" "tiger" - check discrepency
translate(c("dog","cat2","snake"),c("dog","cat"),"animal")
# S-Plus gives [1] "animal" "animal2" "snake"