在ggplot中重新排序数据 [英] reorder data in ggplot

问题描述

我有以下数据：

  tribe rho preference_watermass 
 1 Luna2 -1.000 hypolimnic 
 2 OP10I-A1 -1.000 epilimnic 
 3 B0_FO56C -0.986 hypolimnic 
 4 Planctomycetes_FGIDN -0.943 hypolimnic 
 5 acIV_IVNEG -0.943 hypolimnic 
 6 FTD4J6C01EE04F -0.941 hypolimnic 
 7 alll -0.941 hypolimnic 
 8 FTD4J6C02HMHDM -0.928 hypolimnic 
 9 Planctomycetes_GQLBU -0.928 hypolimnic 
 10 acII-A -0.886 epilimnic 
 11 LD19_GMKGQ -0.880 hypolimnic 
 12 acIV_E2W4O -0.880 hypolimnic 
 13 Planctomycetes_AFE3Z -0.880 epilimnic 
 14 Bacteriodetes -0.880 epilimnic 
 15 FTD4J6C01APQD0 -0.880 epilimnic 
 16 FTD4J6C02GBAUX -0.880 epilimnic 
 17 baII -0.845 epilimnic 
 18 FTD4J6C01CJCBG 0.812过渡性
 19 Pyxis 0.928 hypolimnic 
 20 Sphingobacteria_GQB5E 0.928过渡性
 21 acI- A_I8OXG 0.943 hypolimnic 
 22 LD12 0.943 epilimnic 
  

我想制作条形图是因素（部落）根据rho的附加值进行排序

  plot2 <-ggplot（data = dfm，aes（x = tribe，y = rho，fill = preference_watermass））+ 
 geom_bar（stat =identity）+ 
 coord_flip（）+ 
 labs（y =Spearman correlation rho，x =tribe） + 
 scale_fill_manual（values = c（blue，red，black））
  

然后我尝试重新排序

$ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ fill = preference_watermass））+
geom_bar（stat =identity）+
coord_flip（）+
labs（y =Spearman correlation rho，x =tribe）+
scale_fill_manual（values = c（blue，red，black））

但是得到这个：

我错过了什么，我可以订购这些值？
感谢您的帮助！

解决方案

您必须重新排序数据本身，而不仅限于 aes ，正如@amzu所述：

  dfm $部落<  -  reorder（dfm $ tribe，dfm $ rho）
 plot2 
  

New and stuck in and at ggplot:

I have the following data:

tribe   rho preference_watermass
1   Luna2   -1.000  hypolimnic
2   OP10I-A1    -1.000  epilimnic
3   B0_FO56C    -0.986  hypolimnic
4   Planctomycetes_FGIDN    -0.943  hypolimnic
5   acIV_IVNEG  -0.943  hypolimnic
6   FTD4J6C01EE04F  -0.941  hypolimnic
7   alll    -0.941  hypolimnic
8   FTD4J6C02HMHDM  -0.928  hypolimnic
9   Planctomycetes_GQLBU    -0.928  hypolimnic
10  acII-A  -0.886  epilimnic
11  LD19_GMKGQ  -0.880  hypolimnic
12  acIV_E2W4O  -0.880  hypolimnic
13  Planctomycetes_AFE3Z    -0.880  epilimnic
14  Bacteriodetes   -0.880  epilimnic
15  FTD4J6C01APQD0  -0.880  epilimnic
16  FTD4J6C02GBAUX  -0.880  epilimnic
17  baII    -0.845  epilimnic
18  FTD4J6C01CJCBG  0.812   transitient
19  Pyxis   0.928   hypolimnic
20  Sphingobacteria_GQB5E   0.928   transitient
21  acI-A_I8OXG 0.943   hypolimnic
22  LD12    0.943   epilimnic

I wanted to make a bargraph were factors(tribes) are sorted according to accending values of rho.

plot2<-ggplot(data=dfm, aes(x=tribe,y=rho,fill=preference_watermass))+
  geom_bar(stat="identity")+
  coord_flip()+
  labs(y="Spearman correlation rho",x="tribe")+
  scale_fill_manual(values=c("blue", "red", "black"))

Then I tried reordering

plot2<-ggplot(data=dfm, aes(reorder(tribe,rho,order=TRUE),rho,fill=preference_watermass))+
  geom_bar(stat="identity")+
  coord_flip()+
  labs(y="Spearman correlation rho",x="tribe")+
  scale_fill_manual(values=c("blue", "red", "black"))

But get this one:

What am I missing that I can order the values? Thanks for your help!

解决方案

You have to reorder the data itself, not just within aes, as correctly stated by @amzu:

dfm$tribe <- reorder(dfm$tribe, dfm$rho)
plot2

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