软件实现:R
基础的条形图
ggplot(pg_mean, aes(x = group, y = weight)) + geom_bar(stat = "identity")
ggplot(BOD, aes...(x = group, y = weight)) + geom_bar(stat = "identity", fill = "lightblue",
colour = "black")
2、
涉及分组变量的条形图...另外我们发现,上面图形都是两两一组,那如果有一组就一个值怎么办,那么图形会确失一条bar,然后加宽,具体看图
ce <- cabbage_exp[1:5, ]
ggplot(ce, aes(x = Date...,这列变量中同一水平的因子有好几个,那么我们画条形图时,一般采用频数型,这时用水平出现的频数当做bar的高度.stat="bin"当然也可以不写,因为geom_bar默认是bin
ggplot(diamonds...,堆叠条形图
ggplot(cabbage_exp, aes(x = Date, y = Weight, fill = Cultivar)) + geom_bar(stat = "identity")