R代码，当数据元素出现在列组中时，将group_by多个列并进行汇总

install.packages("dplyr")
library(dplyr)

# 创建一个示例数据框
df <- data.frame(
  group1 = c("A", "A", "B", "B", "A"),
  group2 = c("X", "Y", "X", "Y", "X"),
  value1 = c(1, 2, 3, 4, 5),
  value2 = c(6, 7, 8, 9, 10)
)

# 使用group_by()函数对group1和group2列进行分组
df_grouped <- df %>% group_by(group1, group2)

# 使用summarize()函数对其他列进行汇总操作
df_summary <- df_grouped %>% summarize(
  sum_value1 = sum(value1),
  sum_value2 = sum(value2),
  mean_value1 = mean(value1),
  mean_value2 = mean(value2)
)

# 查看汇总结果
print(df_summary)

# A tibble: 3 x 5
# Groups:   group1 [?]
  group1 group2 sum_value1 sum_value2 mean_value1 mean_value2
  <chr>  <chr>        <dbl>      <dbl>       <dbl>       <dbl>
1 A      X                6         16           3           8
2 A      Y                2          7           2.5         7
3 B      X                3          8           3           8.5