在R编程中将向量转换为因子– as.factor()函数

as.factor()发挥作用R语言用于将传递的对象(通常为Vector)转换为因子。

语法：as.factor(object)参数：Object：要转换的向量

范例1：

# Creating a vector 
x< - c( "female" , "male" , "male" , "female" ) 
  
# Using as.factor() Function
# to convert vector into factor
as.factor(x)

输出如下：

[1] female male   male   female
Levels: female male

范例2：

# Creating a vector 
x< - c( "North" , "North" , "East" , "West" ) 
  
# Using as.factor() Function
# to convert vector into factor
as.factor(x)

输出如下：

[1] North North East  West 
Levels: East North West