用R绘制几个常见的统计描述图

直方图 单个直方图： mycol <- c("#377EB8","#FF7F00","#4DAF4A") #定义颜色变量 p0 <- ggplot(data=dt1,aes(x=index1))+ geom_histogram(fill = mycol[1],position = 'identity',colour = "black",binwidth = 8,alpha = .6) +#bi

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