Ordering of faceted stacked barplot with ggplot2

问题

I have a dataset like the below and am trying to get an ordered faceted stacked barplot. I have looked at some answers on SO particularly this one to come up with my plot but am not sure why this does not work on one particular bar of my stacked barplot

structure(list(reg = c("J", "J", "J", "J", "J", "J", "J", "J", 
"KA", "KA", "KA", "KA", "KA", "KA", "KA", "KA", "KA", "KA", "RI", 
"RI", "RI", "RI", "SU", "SU", "SU", "SU", "SU", "SU", "SA", "SA", 
"SA", "SA", "SA", "SA", "SA", "SA", "SA", "SA", "SA", "SA", "SA", 
"SA", "SA", "SA"), org = structure(c(1L, 1L, 3L, 3L, 4L, 4L, 
2L, 2L, 1L, 1L, 3L, 3L, 4L, 4L, 2L, 2L, 8L, 8L, 2L, 2L, 1L, 1L, 
1L, 1L, 2L, 2L, 5L, 5L, 1L, 1L, 3L, 3L, 4L, 4L, 2L, 2L, 6L, 6L, 
5L, 8L, 7L, 7L, 9L, 9L), .Label = c("WR", "MS", "SM", "AA", "AAL", 
"PH", "P3", "SD", "HS"), class = "factor"), level = structure(c(2L, 
1L, 2L, 1L, 2L, 1L, 2L, 1L, 2L, 1L, 2L, 1L, 2L, 1L, 2L, 1L, 2L, 
1L, 2L, 1L, 2L, 1L, 2L, 1L, 2L, 1L, 2L, 1L, 2L, 1L, 2L, 1L, 2L, 
1L, 2L, 1L, 2L, 1L, 1L, 1L, 2L, 1L, 2L, 1L), .Label = c("E", 
"R"), class = "factor"), share = c(6.94, 1.51, 3.01, 0.42, 1.58, 
0.24, 2.85, 0.19, 4.7, 0.5, 2.16, 5.32, 1.08, 1.26, 0.82, 1.11, 
1.8, 1.73, 2, 3.52, 5, 2, 1.29, 0.38, 0.72, 0.46, 0.44, 2.27, 
15.79, 13.74, 5.12, 16.21, 6.54, 11.16, 8.19, 10.91, 4.71, 5.32, 
0.45, 0.14, 1.03, 0.33, 5.04, 3.03), reg_l = c("J_R", "J_E", 
"J_R", "J_E", "J_R", "J_E", "J_R", "J_E", "KA_R", "KA_E", "KA_R", 
"KA_E", "KA_R", "KA_E", "KA_R", "KA_E", "KA_R", "KA_E", "RI_R", 
"RI_E", "RI_R", "RI_E", "SU_R", "SU_E", "SU_R", "SU_E", "SU_R", 
"SU_E", "SA_R", "SA_E", "SA_R", "SA_E", "SA_R", "SA_E", "SA_R", 
"SA_E", "SA_R", "SA_E", "SA_E", "SA_E", "SA_R", "SA_E", "SA_R", 
"SA_E")), row.names = c(NA, -44L), class = c("tbl_df", "tbl", 
"data.frame"))

and here is my code right now

data$level <- as.factor(as.character(data$level))
data$reg_l <- with(data, paste(reg,level,sep = "_"))

data$org <- factor(data$org,levels=c("WR","MS","SM","AA","AAL","PH","P3","SD","HS"))

# plot
reg_plot <- ggplot(data, aes(x = reorder(reg_l,share),y = share,group=org)) +
  coord_flip()+
  facet_wrap(level~.,ncol = 1,scales="free") +
  geom_bar(stat="identity",aes(fill=org),colour=NA,width=0.75) +
  scale_x_discrete(breaks = data$reg_l, labels = data$reg) +
  xlab("\n") + 
  ylab("\n") +
  scale_y_continuous(limits = c(0,100)) +
  ggtitle("\n")

reg_plot

The image below is the plot I am getting now but some reason the RI bar does not seem to follow the order of high to low values

Any suggestions on how to fix this would be highly appreciated

回答1:

using reorder doesn't seem to respect the facet_wrap when using the aggregation function sum. Using forcats::fct_reorder() worked for me:

reg_plot <- ggplot(data, aes(x = forcats::fct_reorder(reg_l, share, .fun = sum),y = share,group=org)) +
  coord_flip()+
  facet_wrap(level~.,ncol = 1,scales="free") +
  geom_bar(stat="identity",aes(fill=org),colour=NA,width=0.75) +
  scale_x_discrete(breaks = data$reg_l, labels = data$reg) +
  xlab("\n") + 
  ylab("\n") +
  scale_y_continuous(limits = c(0,100)) +
  ggtitle("\n")

reg_plot

来源：https://stackoverflow.com/questions/57845331/ordering-of-faceted-stacked-barplot-with-ggplot2

标签

ggplot2

bar-chart

facet