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我正在使用下面的代码来丰富一个箱形图,其中包含在x轴上创建的分类变量的汇总表.

# Libs
require(ggplot2); require(gridExtra); require(grid); require(ggthemes)

# Data
data(mtcars)

# Function to summarise the data
fun_dta_sum <- function(var_sum, group, data) {
    sum_dta <- data.frame(
        aggregate(var_sum ~ group, FUN = min, data = data),
        aggregate(var_sum ~ group, FUN = max, data = data),
        aggregate(var_sum ~ group, FUN = mean, data = data))

    sum_dta <- sum_dta[,c(1,2,4,6)]
    colnames(sum_dta) <- c("Group (x axis)", "min", "max", "mean")
    rownames(sum_dta) <- NULL
    sum_dta[,-1] <-round(sum_dta[,-1],1)
    return(sum_dta)

}

# Graph
ggplot(data = mtcars, aes(x = cyl, y = …