R编程中获取不同数据类型的类——class()函数
R 语言中的class()
函数用于返回用作参数的数据类。
Syntax: class(x)
Parameters:
x: specified data
示例 1:
# R program to illustrate
# class function
# Specifying "Biochemical oxygen demand"
# data set
x <- BOD
x
# Calling class() function
class(x)
输出:
Time demand
1 1 8.3
2 2 10.3
3 3 19.0
4 4 16.0
5 5 15.6
6 7 19.8
[1] "data.frame"
示例 2:
# R program to illustrate
# class function
# Calling class() function
# over different types of data
class(2)
class(2.8)
class("3")
class("gfg")
class(1 + 2i)
输出:
[1] "numeric"
[1] "numeric"
[1] "character"
[1] "character"
[1] "complex"