Question

Error in mutate_impl(.data, dots) : 
  Column `month` can't be modified because it's a grouping variable

我想用其中一个轴作为一年中的一个月，但我希望从8月到7月。我也想＆＃34;周＆＃34;显示1-5而不是5-1 .....但当我尝试以下代码时，它不会让我这样做：

Admit_Weekly1 <- Admit_Weekly %>% 
+   filter(Retention_Status == 1) %>% 
+   mutate(week = factor(week,levels(week)[1,2,3,4,5])) %>% 
+   mutate(month = factor(month,levels(month)["August","September","October","November",
+                                             "December","January","February","March",
+                                             "April", "May","June","July"]))

mutate_impl（.data，dots）中的错误：无法修改列week，因为它是一个分组变量

Answer 1

我遇到了同样的问题，并使用ungroup（）解决了这个问题：

df <- df %>%
ungroup(var) %>%
mutate(var = factor(var,levels = c(1,2,3),
                    labels = c("label1","label2","label3") ) )

使用mutate（）返回有关无法修改的错误，因为它是一个分组变量

1 个答案: