在点阵条形图中添加线条和标签 [R]

Question

我有两个关于在点阵中自定义条形图的问题。我尝试向条形图添加标签，分别编辑比例，但我的代码不起作用。我做错了什么？应该有一些值，包括“%”。

第二个问题是如何在条形后面的绘图区域的顶部和底部之间绘制线条并位于打印的比例值处。感谢您的任何建议和帮助，塞巴斯蒂安。

这是代码：

library(lattice)
library(plyr)
data(postdoc, package="latticeExtra")
colnames(postdoc) <- c("Legendtext 1", "2", "3", "4", "5")
colors <- c(rgb(166,27,30,maxColorValue = 255),                             
        rgb(192,80,77,maxColorValue = 255),
        rgb(24,65,83,maxColorValue = 255),
        rgb(60,143,167,maxColorValue = 255),
        rgb(130,184,208,maxColorValue = 255))
colorset <- simpleTheme(col=colors,                                          
                    border="white")
data.p <- prop.table(postdoc, margin=1)
data <- data.p * 100
pl <- barchart(data,
           par.settings = colorset,                                      
           box.ratio = 1,                                                
           xlab = " ",                                                   
           panel = function(...) {   # Code for panel function by rcs (http://stackoverflow.com/questions/3220702/display-values-in-stacked-lattice-barchart-r) - thank you very much!
             panel.barchart(...) 
             tmp <- list(...)
             tmp <- data.frame(x=tmp$x, y=tmp$y)
             # calculate positions of text labels                        
             df <- ddply(tmp, .(y),
                         function(x) {
                           data.frame(x, pos=cumsum(x$x)-x$x/2)
                         })
             panel.text(x=df$pos, y=df$y,                                
                        label=sprintf("%.0f", df$x),                     
                        cex=0.7, col="white")
             panel.axis(side = c("bottom"),
                        at = list(0, 20, 50, 75, 100),
                        labels = list("0%", "25%", "50%", "75%", "100%"),
                        ticks = TRUE)       
           },
           auto.key=list(columns=5, space="bottom",                          
                         cex=0.8, size=1.4, adj=1,
                         between=0.2, between.colums=0.1, 
                         size = 1.3, points = FALSE, rectangles = TRUE))

Answer 1

问题 1：以下内容对我有用 (half=FALSE)

panel.axis(side=c("bottom"),
           at=c(0, 25, 50, 75, 100),
           labels=c("0%", "25%", "50%", "75%", "100%"),
           rot=0, half=FALSE, ticks=TRUE)

问题 2：添加对 panel.grid（或 panel.abline）的调用在面板函数中的 panel.barchart() 之前：

panel.grid(h=FALSE, v=-1)