ggplot中的数字格式:y轴标签上没有符号

this question的答案对我也非常有帮助.我只需要提示一件事:

如果我在一组具有不同y值的区域上重复绘图,我如何摆脱y-scale-Labels中的符号?

到目前为止这是我的代码:

for (district in DISTRICTS) {
HW.dist <- subset(HW,DISTRICT==district)
  py <- ggplot(data=HW.dist,aes(x=as.numeric(AGE),fill=SEX))
  py <- py +
    geom_bar(subset=.(SEX=="F"), binwidth=1) +
    geom_bar(subset=.(SEX=="M"), binwidth=1,aes(y=..count..*(-1))) +
    scale_fill_grey(guide = guide_legend(title = NULL)) +
    scale_x_discrete(breaks=seq(0,120,by=5),labels=abs(seq(0,120,by=5))) +
    labs(y = "Count", x = "Age") +
    labs(title = "Random title text") +
    theme(plot.title = element_text(size = rel(1.5))) +
    coord_flip()
  print(py)
}

(DISTRICT显然只是16个区的名单.)

样本数据(HW):

SEX  AGE            DISTRICT 
 M   048          Innenstadt
 M   022          Innenstadt
 M   029            Neustift
 M   053            Neustift
 F   044             Heining
 F   017             Heining
 F   056            Neustift
 M   054            Neustift
 M   030            Altstadt
 M   029           Schalding
 F   029            Altstadt

结果:

包括我在这里得到的帮助和一些摆弄y轴中断,这是最终代码的相关部分(有一些注释):

# How broad will the pyramid be?
f <- max(table(as.numeric(HW$AGE),HW$SEX)) 
# Round that up to the next power of 10 (eg 557 -> 600)
f <- ceiling(f/10^floor(log10(f)))*10^floor(log10(f)) 
# Use that power of 10 as breaks
l <- 10^floor(log10(f))
# f and l will be used in the 'scale_y_discrete' statement below

py <- ggplot(data=HW,aes(x=as.numeric(AGE),fill=MW))  
py +
  geom_bar(subset=.(SEX=="F"), binwidth=1) +
  geom_bar(subset=.(SEX=="M"), binwidth=1 ,aes(y=..count..*(-1))) +
  scale_fill_grey(guide = guide_legend(title = NULL)) +
  scale_x_continuous(breaks=seq(0,120,by=10),labels=abs(seq(0,120,by=10))) +
  scale_y_discrete(breaks=seq(-f,f,by=l),labels=abs) +
  labs(y = "Count", x = "Age") +
  labs(title = "Random title text") + theme(plot.title = element_text(size = rel(2))) +
  # Tell ggplot not to allocate drawing space for the negative (=male) on top (flipped: right) of the positive (=female) part of the graph
  coord_flip(xlim = c(0,110), ylim = c(-f, f))

这对我来说非常适合,即使是在一个环形区域内也是如此.

非常感谢!

最佳答案 由于您正在执行coord_flip,因此必须更改y轴值的标签(在翻转时变为x轴).

添加以下行,但不是(-5到5)将它们设置为geom_bars可以具有的最大ve和-ve值,具体取决于数据.我们只是将轴值标签设置为断点的绝对值.

+ scale_y_discrete(breaks=seq(-5,5,by=1),labels=abs(seq(-5,5,by=1)))     

我没有您的完整数据,但添加上面的行会处理减号并产生:

根据OP的澄清更新

看起来哈德利已经想到了这一点.如果不指定中断,只需将值设为绝对数字,以便不打印负值.尝试添加:

+ scale_y_discrete(labels=abs)
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