편집을 취소할 수 있습니다. 이 편집을 되돌리려면 아래의 바뀐 내용을 확인한 후 게시해주세요.
최신판 | 당신의 편집 | ||
4번째 줄: | 4번째 줄: | ||
* 캐릭터 벡터에서 부분문자열을 추출하거나 교체한다. | * 캐릭터 벡터에서 부분문자열을 추출하거나 교체한다. | ||
< | <source lang='r' run> | ||
substr("ABCDEF", 3, 3) ## [1] "C" | substr("ABCDEF", 3, 3) ## [1] "C" | ||
substr("ABCDEF", 3, 5) ## [1] "CDE" | substr("ABCDEF", 3, 5) ## [1] "CDE" | ||
</ | </source> | ||
< | <source lang='r' run> | ||
substr(c("ABCDEFGH","abcdefgh","12345678","QWERTYUI"), 1, 1) ## [1] "A" "a" "1" "Q" | substr(c("ABCDEFGH","abcdefgh","12345678","QWERTYUI"), 1, 1) ## [1] "A" "a" "1" "Q" | ||
substr(c("ABCDEFGH","abcdefgh","12345678","QWERTYUI"), 1, 3) ## [1] "ABC" "abc" "123" "QWE" | substr(c("ABCDEFGH","abcdefgh","12345678","QWERTYUI"), 1, 3) ## [1] "ABC" "abc" "123" "QWE" | ||
substr(c("ABCDEFGH","abcdefgh","12345678","QWERTYUI"), 1, 2:3) ## [1] "AB" "abc" "12" "QWE" | substr(c("ABCDEFGH","abcdefgh","12345678","QWERTYUI"), 1, 2:3) ## [1] "AB" "abc" "12" "QWE" | ||
</ | </source> | ||
< | <source lang='r' run> | ||
substr(c("ABCDEFGH","abcdefgh","12345678","QWERTYUI"), 1:2, 4) ## [1] "ABCD" "bcd" "1234" "WER" | substr(c("ABCDEFGH","abcdefgh","12345678","QWERTYUI"), 1:2, 4) ## [1] "ABCD" "bcd" "1234" "WER" | ||
substr(c("ABCDEFGH","abcdefgh","12345678","QWERTYUI"), 1:4, 4) ## [1] "ABCD" "bcd" "34" "R" | substr(c("ABCDEFGH","abcdefgh","12345678","QWERTYUI"), 1:4, 4) ## [1] "ABCD" "bcd" "34" "R" | ||
substr(c("ABCDEFGH","abcdefgh","12345678","QWERTYUI"), 1:4, 4:7) ## [1] "ABCD" "bcde" "3456" "RTYU" | substr(c("ABCDEFGH","abcdefgh","12345678","QWERTYUI"), 1:4, 4:7) ## [1] "ABCD" "bcde" "3456" "RTYU" | ||
</ | </source> | ||
==같이 보기== | ==같이 보기== |