将向量的元素转换为 R 语言中的字符串 – toString()函数

R 编程语言中的toString()函数用于字符串。

Syntax: toString(x, width = NULL)

Parameters:

x: R object
width: Suggestion for the maximum field width. Values of NULL or 0 indicate no maximum. The minimum value accepted is 6 and smaller values are taken as 6

R 语言示例中的toString()函数

示例 1： R 语言中 toString()函数的基本示例

R

# R program to illustrate
# toString function
 
# Initializing a string vector
x <- c("GFG", "Geeks", "GeeksforGeekss")
 
# Calling the toString() function
toString(x)

R

# R program to illustrate
# toString function
 
# Initializing a string vector
x <- c("GFG", "Geeks", "GeeksforGeekss")
 
# Calling the toString() function
toString(x, width = 2)
toString(x, width = 8)
toString(x, width = 10)

R

# Matrix having 3 rows and 3 columns
# filled by a single constant 5
mat <- (matrix(5, 3, 3))
print(mat)
str <- toString(mat)
print("String")
print(str)

输出：

[1] "GFG, Geeks, GeeksforGeekss"

示例 2：在 R 语言中使用 toString()函数进行格式化

R

# R program to illustrate
# toString function
 
# Initializing a string vector
x <- c("GFG", "Geeks", "GeeksforGeekss")
 
# Calling the toString() function
toString(x, width = 2)
toString(x, width = 8)
toString(x, width = 10)

输出：

[1] "GF...."
[1] "GFG, ...."
[1] "GFG, G...."

示例 3：在 R 中将矩阵转换为字符串

R

# Matrix having 3 rows and 3 columns
# filled by a single constant 5
mat <- (matrix(5, 3, 3))
print(mat)
str <- toString(mat)
print("String")
print(str)

输出：

[,1] [,2] [,3]
[1,]    5    5    5
[2,]    5    5    5
[3,]    5    5    5
[1] "String"
[1] "5, 5, 5, 5, 5, 5, 5, 5, 5"