检查对象是否属于 R 编程中的字符数据类型 - 是。字符()函数

R 语言中的is.character()函数用于检查对象是否为字符串/字符的形式。如果对象的任何元素是字符数据类型，它将返回 true。

Syntax: is.character(Object)

Parameter:
Object: It could be an array, list, vector, etc.

示例 1：

# R Program to illustrate 
# the use of is.character function
  
# Creating a vector of mixed datatype
x1 <- c("Hello", "Geeks", 100)
  
# Creating a vector of Numeric datatype
x2 <- c(10, 20, 30)
  
# Calling is.character() function
is.character(x1)
is.character(x2)

输出：

[1] TRUE
[1] FALSE

示例 2：

# R Program to illustrate 
# the use of is.character function
  
# Create the vectors with different length 
vector1 <- c(1, 2, 3) 
vector2 <- c("GFG", "Geeks", "Hello") 
    
# taking this vector as input 
result <- array(c(vector1, vector2), dim = c(3, 3, 2)) 
  
# Calling is.character() function
is.character(result)

输出：

[1] TRUE