在 R 语言中按列组合向量、矩阵或数据帧 - cbind()函数

R语言中的cbind()函数用于按列组合指定的向量、矩阵或数据框。

Syntax: cbind(x1, x2, …, deparse.level = 1)

Parameters:
x1, x2: vector, matrix, data frames
deparse.level: This value determines how the column names generated. The default value of deparse.level is 1.

示例 1：

# R program to illustrate
# cbind function
  
# Initializing two vectors
x <- 2:7
y <- c(2, 5)
  
# Calling cbind() function
cbind(x, y)

输出：

x y
[1, ] 2 2
[2, ] 3 5
[3, ] 4 2
[4, ] 5 5
[5, ] 6 2
[6, ] 7 5

示例 2：

# R program to illustrate
# cbind function
  
# Initializing a vector
x <- 1:5
  
# Calling cbind() function
cbind(x, 4)
cbind(x, 5, deparse.level = 0)
cbind(x, 6, deparse.level = 2)
cbind(x, 4, deparse.level = 6)

输出：

x  
[1, ] 1 4
[2, ] 2 4
[3, ] 3 4
[4, ] 4 4
[5, ] 5 4
     [, 1] [, 2]
[1, ]    1    5
[2, ]    2    5
[3, ]    3    5
[4, ]    4    5
[5, ]    5    5
     x 6
[1, ] 1 6
[2, ] 2 6
[3, ] 3 6
[4, ] 4 6
[5, ] 5 6
     [, 1] [, 2]
[1, ]    1    4
[2, ]    2    4
[3, ]    3    4
[4, ]    4    4
[5, ]    5    4