Solution For Side By Side Bar Graph Error: can only have an x or y aesthetic

Question

我在制作并排条形图时遇到了问题，其中一列包含字符 (ride_month)，一列包含骑手两种类型的总数字数据 (ride_duration)( member_casual).

ggplot(data=bike_data_v4)+
+   geom_bar(mapping = aes(x=ride_month,fill=member_casual))+
+   geom_col(position = "dodge")

Error in `check_required_aesthetics()`:
! geom_col requires the following missing aesthetics: x and y
Run `rlang::last_error()` to see where the error occurred.

我的数据集最初是这样的：

为了解决我的问题，我创建了一个新的数据集分组 member_casual 和 ride_month。接下来，我通过管道传输了 ride_duration.

的总和

bike_data_removedcols_V2 <- bike_data_removedcols %>% 
  group_by(member_casual, ride_month) %>%
  summarise(ride_duration_sum=sum(ride_duration))

我将新创建的数据集应用于这个 ggplot 函数：

ggplot(data = bike_data_removedcols_V2, aes(ride_month, ride_duration_sum, fill=member_casual, group = member_casual))+
      geom_col(position = position_dodge())

成功！

Answer 1

如果您想要一个分组条形图，请添加 group 美学，如下所示：

  ggplot(data = mtcars, aes(ride_month, ride_duration, fill=member_casual, group = member_casual))+
    geom_col(position = position_dodge())

这里是 mtcars 数据集的示例：

  ggplot(data = mtcars, aes(cyl, mpg, fill=am, group = am))+
    geom_col(position = position_dodge())

Answer 2

这是你想要的吗？

library(ggplot2)
data = mtcars

ggplot(data, aes(x = factor(carb), y = mpg, fill = factor(vs))) +
  geom_col(position = "dodge")

Solution For Side By Side Bar Graph Error: can only have an x or y aesthetic

Solution For Side By Side Bar Graph Error: can only have an x or y aesthetic

r

bar-chart

side-by-side