r - ggplot - 多个箱线图

Question

我正在尝试使用此数据集按因子混合分面创建箱线图(组合 3 个箱线图):

daf <- read.table("http://pastebin.com/raw.php?i=xxYjmdgD", header=T, sep="\t")

示例如下:

                                            ia mix   Rs
1                                    Fluazinam   1 0.62
2                                    Fluazinam   1 0.76
3                                    Fluazinam   1 0.76
4                                    Fluazinam   1 0.52
5                                    Fluazinam   1 0.56
6                                    Fluazinam   1 0.20
7                                    Fluazinam   1 0.98
235 Carbendazim+Cresoxim-Metílico+Tebuconazole   3 0.65
236 Carbendazim+Cresoxim-Metílico+Tebuconazole   3 0.28
237 Carbendazim+Cresoxim-Metílico+Tebuconazole   3 0.41

这些是我失败的尝试!

library(ggplot2) 

qplot( Rs, ia, data=daf) + 
  facet_grid(mix ~ ., scales = "free", space = "free", labeller = label_both)

» 当我添加 qplot( Rs, ia, data=daf, geom="boxplot") 它只是出现一条线，而不是方框。

ggplot(data=daf, aes(x=ia, y=Rs))+
  geom_boxplot(outlier.colour = "black", outlier.size = 2)  +  
  coord_flip() +  theme_bw() +
  scale_y_continuous(breaks=seq(0,1,by=0.25))+
  stat_summary(fun.y = mean, geom="point", shape = 4, size = 3, colour = "blue") +
  facet_grid(mix ~. , scales = "free", space="free", labeller = label_both) 

»它将每个“ia”级别重复到每个“mix”级别

ggplot(data=daf, aes(x=ia, y=Rs))+
  geom_boxplot(outlier.colour = "black", outlier.size = 2)  +  
  layer(data = a, mapping = aes(x = ia, y= 0, label=a$Rs.median),
        geom = "text", color="NavyBlue", size=3.5) +
  coord_flip() +  theme_bw() +
  scale_y_continuous(breaks=seq(0,1,by=0.25))+
  stat_summary(fun.y = mean, geom="point", shape = 4, size = 3, colour = "blue") 

最后我想要三个图的组合:

从第一个图中，facet.grid(不重复“ia”变量)，从第二个图中，方框，从第三个图中，左边距内的中值，如果可能的话，进入因子“mix”的每个级别，按中值重新排序“ia”...

有人可以帮我解决这个问题吗？

提前致谢!

Answer 1

geom_boxplot 假设分类变量位于 x 轴上。 coord_flip 不能与 facet_grid + geom_boxplot 结合使用。一种解决方法是旋转文本。您可以在另一个程序中导出并旋转图像(或者弄清楚如何拉出 grid 对象并旋转它)。

a = ddply(daf, .(ia,mix), function(x) c(Rs=median(x$Rs, na.rm=TRUE)))

ggplot( data=daf, aes(x=ia, y=Rs) ) + 
  geom_boxplot() +
  facet_wrap(~mix, scales="free_x") +
  stat_summary(fun.y = mean, geom="point", shape = 4, size = 3, colour = "blue") +
  theme(axis.text.x=element_text(angle = 90, hjust = 1, vjust=0.5)) +
  theme(axis.title.x=element_text(angle = 90, vjust=0.5)) +
  theme(axis.text.y=element_text(angle = 90, hjust=0.5)) +
  theme(strip.text=element_text(angle = 90, hjust=0.5)) +
  geom_text(data = a, mapping = aes(x = ia, y= 0.02, label=round(Rs,2)),
        color="NavyBlue", size=3.5, angle=90, hjust=1) +
  ylim(-0.03,1)