[R] paste

> paste("A","1")[1] "A 1" > paste("A","1","2")[1] "A 1 2" > paste("A","1",sep="")[1] "A1" > paste("A","1",sep="-")[1] "A-1" > paste("A",1:3,sep="")[1] "A1" "A2" "A3" > paste("A",1:3,sep="",collapse="-")[1] "A1-A2-A3" > paste0("A","1")[1] "A1" > paste0("A",1:3)[1] "A1" "A2" "A3" > paste0("A",1:3,collapse="_")[1] "A1_A2_A3" > - paste0은 sep=""을 넣어준 것과 같다.

2015.12.03