Question

我试图为数据集添加标签。标签始终按字母顺序排序，而不是按值排序。请帮帮我。代码是：

sat.df<- data.frame(sapply(satdata, factor,
                       levels = c( 1, 2, 3, 4, 5, 9),
                       labels = c( "Not at all Satisfied", "Not satisfied", "Neural",
                                   "Satisfied", "Very Satisfied", "Not Applicable")))

我得到的摘要结果是：

                    q1                        Q6_a    
 Neural              :116   Neural              : 35  
 Not Applicable      : 25   Not Applicable      : 47  
 Not at all Satisfied: 13   Not at all Satisfied:  1  
 Not satisfied       : 32   Not satisfied       : 14  
 Satisfied           :325   Satisfied           :132  
 Very Satisfied      :399   Very Satisfied      :171  
 NA's                :  6   NA's                :516

我想知道是否有办法将它们从1重新排序到9。非常感谢你！

Answer 1

默认情况下，

sapply会简化为character矩阵，会丢失因子级别顺序。您可以设置simplify = F或使用lapply代替。

# sample data (please include something like this
# in your question next time)
satdata = data.frame(q1 = 1:3, q2 = 3:5)

summary(data.frame(sapply(satdata, factor,
    levels = c( 1, 2, 3, 4, 5, 9),
    labels = c( "Not at all Satisfied", "Not satisfied", "Neural",
                "Satisfied", "Very Satisfied", "Not Applicable"),   
    simplify = FALSE)))

summary(data.frame(lapply(satdata, factor,
    levels = c( 1, 2, 3, 4, 5, 9),
    labels = c( "Not at all Satisfied", "Not satisfied", "Neural",
                "Satisfied", "Very Satisfied", "Not Applicable"))))

                    q1                       q2   
 Not at all Satisfied:1   Not at all Satisfied:0  
 Not satisfied       :1   Not satisfied       :0  
 Neural              :1   Neural              :1  
 Satisfied           :0   Satisfied           :1  
 Very Satisfied      :0   Very Satisfied      :1  
 Not Applicable      :0   Not Applicable      :0

停止R标签按字母顺序排序

1 个答案: