📜  r dataframe column facto - R 编程语言代码示例

📅  最后修改于: 2022-03-11 14:52:01.460000             🧑  作者: Mango

代码示例1
mtcars  #look at this built in data set
str(mtcars) #allows you to see the classes of the variables (all numeric)

#one approach it to index with the $ sign and the as.factor function
mtcars$am <- as.factor(mtcars$am)
#another approach
mtcars[, 'cyl'] <- as.factor(mtcars[, 'cyl'])
str(mtcars)  # now look at the classes