我如何在facet_nested中排序x轴

Question

我已经创建了一个小程序，并根据我的需要相应地排列了x轴。但是，一旦我通过facet_nested运行它，它就会更改顺序。

这是我的文件的样子：

文件：

drug         P_resistant    G_resistant   
DrugA        18             16           
DrugB1       430            425          
DrugB2       156            154          
DrugB3       0              0            
DrugC1       60             56           
DrugC2       66             64           
DrugC3       113            111          
DrugC4       250            248         

根据类型，类别和药品订单安排订单：

library(ggplot2)
library(tidyr)
library(dplyr)
library(ggrepel)
library(forcats)
library(data.table)
library(ggnomics)
library(scales)
library(survival)
library(tidytext)

file.g <- gather(file, type, value, -drug)

##this is for facet "group"
file.g$group <-c("87.51%","98.85%","98.71%","NA","93.2%","96.9%","98.2%","99%","87.51%","98.85%","98.71%","NA","93.2%","96.9%","98.2%","99%")

##this is for facet "class"
file.g$class <- c(rep("Class A",1),rep("Class B",3),rep("Class C",4),rep("Class A",1),rep("Class B",3),rep("Class C",4))

## the order of drug appearance on x-axis
file.g$drug_order<- c(4,1,2,3,5,6,7,8,4,1,2,3,5,6,7,8)

因此，当您查看file.g时，它将看起来像这样

drug        type           value     group       class      drug_order
DrugA       P_resistant    18        87.51%      Class A    4
DrugB1      P_resistant    430       98.85%      Class B    1
DrugB2      P_resistant    156       98.71%      Class B    2
DrugB3      P_resistant    0         NA          Class B    3
DrugC1      P_resistant    60        93.2%       Class C    5
DrugC2      P_resistant    66        96.9%       Class C    6
DrugC3      P_resistant    113       98.2%       Class C    7
DrugC4      P_resistant    250       99%         Class C    8
DrugA       G_resistant    16        87.51%      Class A    4
DrugB1      G_resistant    425       98.85%      Class B    1
DrugB2      G_resistant    154       98.71%      Class B    2
DrugB3      G_resistant    0         NA          Class B    3
DrugC1      G_resistant    56        93.2%       Class C    5
DrugC2      G_resistant    64        96.9%       Class C    6
DrugC3      G_resistant    111       98.2%       Class C    7
DrugC4      G_resistant    248       99%         Class C    8

以下代码将x轴按照我的需要进行排列：

DrugB1，DrugB2，DrugB3，DrugA，DrugC1，DrugC2，DrugC3，DrugC4

file.g$type <- factor(file.g$type, levels=c("P_resistant","G_resistant"))

file.g$class <- factor(file.g$class, levels= c("Class B", "Class A", "Class C"))

##main script
p<-ggplot(file.g, aes(fill=type, x=reorder_within(drug, drug_order, class), y=value)) + 
  geom_bar(aes(fill = type), stat = "identity", position = "dodge", colour="white") + 
  geom_text(aes(label=value), position=position_dodge(width=1.2), vjust=-0.5)+ 
  scale_fill_manual(values=c("#af8dc3","#7fbf7b")) + 
  scale_y_continuous(expand = c(0, 0), limits = c(0, 500)) +
  theme(title = element_text(size = 18), legend.text=element_text(size=12), axis.text.x=element_text(size=9), axis.text.y =element_text(size=15)) +
  theme(plot.title = element_text(hjust = 0.5))+
  scale_x_reordered()

但是当我通过嵌套构面运行时>

p+facet_nested(.~class+group, scales= "free_x", space= "free_x")+
  theme(strip.text.x = element_text(size = 7.5))

将x轴顺序更改为

DrugB2，DrugB1，DrugB3，DrugA，DrugC1，DrugC2，DrugC3，DrugC4

[我已经坚持了几个小时。。我感谢您的帮助或想法。

我已经创建了一个小程序，并根据我的需要相应地排列了x轴。但是，一旦我通过facet_nested运行它，它就会更改顺序。这是我的文件的样子：file：drug ...

Answer 1

问题不是x轴，x轴在每个构面内只有一个值。问题很有可能是用于方面的file.g$class和file.g$group中的因子水平的排序。这不是facet_nested特有的问题，facet_grid所基于的排序问题也相同。