如何用语言绘制条形图(语言绘制条形图加背景颜色)

导语：R语言绘制条形图

数据

> counts  None   Some Marked     42     14     28 

简单条形图

最基本用法：barplot()

> barplot(counts, main = &34;, xlab = &34;, ylab = &34;)

image.png

水平条形图

> barplot(counts, main = &34;, xlab = &34;, ylab = &34;, horiz = TRUE)

image.png

数据

> counts                 Placebo Treated  None        29      13  Some         7       7  Marked       7      21

堆砌条形图

> barplot(counts, main = &34;, xlab = &34;, ylab = &34;, col=c(&34;, &34;, &34;), legend=rownames(counts))

image.png

棘状图

> spine(counts, main = &34;)

image.png

分组条形图

> barplot(counts, main = &34;, xlab = &34;, ylab = &34;, col=c(&34;, &34;, &34;), legend=rownames(counts), beside = TRUE)

image.png

数据

> states = data.frame(state.region, state.x77)> means = aggregate(states$Illiteracy,by=list(state.region),mean)> means        Group.1        x1     Northeast 1.0000002         South 1.7375003 North Central 0.7000004          West 1.023077

均值条形图

> barplot(means$x, names.arg = means$Group.1, main = &34;)

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