"R substr()"의 두 판 사이의 차이

2020년 11월 15일 (일) 01:10 기준 최신판

1 개요[ | ]

R substr()

"Substrings Of A Character Vector → 캐릭터 벡터의 부분문자열"
캐릭터 벡터에서 부분문자열을 추출하거나 교체한다.

substr("ABCDEF", 3, 3) ## [1] "C"
substr("ABCDEF", 3, 5) ## [1] "CDE"

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, 2:3) ## [1] "AB"  "abc" "12"  "QWE"

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, 4:7) ## [1] "ABCD" "bcde" "3456" "RTYU"

2 같이 보기[ | ]

3 참고[ | ]

https://www.rdocumentation.org/packages/base/versions/3.5.3/topics/substr

@@ 1번째 줄: / 1번째 줄: @@
 ==개요==
 ;R substr()
+* "Substrings Of A Character Vector {{해석|캐릭터 벡터의 부분문자열}}"
+* 캐릭터 벡터에서 부분문자열을 추출하거나 교체한다.
-<source lang='r' run>
+<syntaxhighlight lang='r' run>
 substr("ABCDEF", 3, 3) ## [1] "C"
 substr("ABCDEF", 3, 5) ## [1] "CDE"
-</source>
+</syntaxhighlight>
-<source lang='r' run>
+<syntaxhighlight 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"
-</source>
+</syntaxhighlight>
-<source lang='r' run>
+<syntaxhighlight 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"
-</source>
+</syntaxhighlight>
 ==같이 보기==
@@ 27번째 줄: / 29번째 줄: @@
 [[분류: R base]]
+[[분류: R 문자열]]