ggplot2 画分面的柱状图

最新推荐文章于 2025-07-05 09:02:02 发布

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本文介绍使用R语言的ggplot2包绘制带有分面的填充柱状图的方法。通过具体代码示例，展示了如何读取数据、设置绘图参数、应用主题样式以及自定义颜色方案。

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ggplot2 画分面的柱状图
直接上代码：

df=read.table("class.txt",header=TRUE)
ggplot(data = df, mapping = aes(x = factor(samples), y = y, fill = class)) + geom_bar(stat= 'identity', position =
 'fill',size=6)+facet_grid(rows = vars(z))+theme(legend.text = element_text(size = 7))+scale_fill_manual(values = 
 c("#C71585","#FFB6C1","#800080","#9932CC","#A0522D","#FF8C00","#FFFF00","#00BFFF","#008080","#00F
 FFF","#000000","#808080","#0000CD","#FF1493","#7CFC00","#FF0000","#00CED1","#ADD8E6","#C0C0C0","
 #90EE90","#00FF00","#800000","#A52A2A","#DC143C","#D87093","#4B0082","#6A5ACD","#EE82EE","#D8BF
 D8","#8B4513","#D2691E","#CD5C5C","#BC8F8F","#228B22","#F08080",))+xl
 ab('Treatment')+ylab('relative abundance')+theme(panel.grid.major =element_blank(), panel.grid.minor = 
 element_blank(),panel.background = element_blank(),axis.line = element_line(colour = 
 "black"))+theme(strip.background = element_rect(fill="NA"))

输入文件格式：
在这里插入图片描述