Combine R Objects by Rows or Columns
Package:
base
Take a sequence of vector, matrix or data frames arguments and combine by columns or rows, respectively. These are generic functions with methods for other R classes.
Usage
cbind(..., deparse.level = 1) rbind(..., deparse.level = 1) > m<-cbind(1,1:7) # the '1' (= shorter vector) is recycled > m
[,1] [,2]
[1,] 1 1
[2,] 1 2
[3,] 1 3
[4,] 1 4
[5,] 1 5
[6,] 1 6
[7,] 1 7
> m<-cbind(m,8:14)[,c(1,3,2)]# insert a column中间列，次序是1，3，2
> m
[,1] [,2] [,3]
[1,] 1 8 1
[2,] 1 9 2
[3,] 1 10 3
[4,] 1 11 4
[5,] 1 12 5
[6,] 1 13 6
[7,] 1 14 7
> rbind(1,1:4)
[,1] [,2] [,3] [,4]
[1,] 1 1 1 1
[2,] 1 2 3 4