级别分解无法转换为ggplot BARCPLOT变量顺序

我试图在ggplot堆叠条形图中对变量进行排序。 以下是我目前的代码：

levels(rs$Site) <- c("Mature","Little East","Upper Fill","Lower Fill")
# I have rearranged the levels to the desired order, but the output looks like 
# c("Little East","Lower Fill","Upper Fill","Mature")

library(ggplot2)
library(scales)
ggplot(rs, aes(x = Site)) + geom_bar(aes(fill = At.Mature), position = 'fill') +
    scale_x_discrete(limits=unique(rs$Site)) +
    coord_flip()

我曾尝试使用factor（）对级别进行重新排序，但结果保持不变

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为什么“小东方”会移到末尾（图的底部）？如何解决此问题？

我们可以使用顺序中指定的

级别再次调用
因子

rs$Site <- factor(rs$Site, levels = c("Mature", "Little East", 
          "Upper Fill", "Lower Fill"))

数据
这解决了问题。我不知道指定级别会改变值。谢谢你。@BryantLuna很高兴它对你有用。你也可以查一下
rs$Site <- factor(rs$Site, levels = c("Mature", "Little East", 
          "Upper Fill", "Lower Fill"))

ggplot(rs, aes(x = Site)) +  
      geom_bar(aes(fill = At.Mature), position = 'fill') + 
      scale_x_discrete(limits = levels(rs$Site)) + 
      coord_flip()

set.seed(24)
rs <- data.frame(Site = sample(c("Mature","Little East",
"Upper Fill","Lower Fill"), 30, replace = TRUE), 
   At.Mature = sample(c("Yes", "No"), 30, replace = TRUE))

set.seed(24)
v1 <- factor(sample(LETTERS[1:5], 20, replace = TRUE))
v1
#[1] B B D C D E B D E B D B D D B E A A C A
#Levels: A B C D E
levels(v1) <- c('C', 'D', 'E', 'A', 'B')
v1
#[1] D D A E A B D A B D A D A A D B C C E C  ### values got replaced
#Levels: C D E A B