geom_text()中的颜色超过1种

Question

我有这些数据:

data <- structure(list(Cod.projeto = c(7L, 7L, 7L, 7L, 7L, 7L, 7L, 7L
), Nome.projeto = c("ESCOLAS INFANTIS", "ESCOLAS INFANTIS", "ESCOLAS INFANTIS", 
"ESCOLAS INFANTIS", "ESCOLAS INFANTIS", "ESCOLAS INFANTIS", "ESCOLAS INFANTIS", 
"ESCOLAS INFANTIS"), Secretarua = c("SMED", "SMED", "SMED", "SMED", 
"SMED", "SMED", "SMED", "SMED"), Comp = structure(c(1L, 2L, 1L, 
2L, 1L, 2L, 1L, 2L), .Label = c("28/02/2013", "01/03/2013"), class = c("ordered", 
"factor")), Estado = c("Criadas", "Criadas", "Providas", "Providas", 
"Criadas", "Criadas", "Providas", "Providas"), Categoria = c("A/G", 
"A/G", "A/G", "A/G", "B", "B", "B", "B"), Vagas = c(67, 67, 63, 
63, 124, 124, 73, 72)), .Names = c("Cod.projeto", "Nome.projeto", 
"Secretarua", "Comp", "Estado", "Categoria", "Vagas"), row.names = c(NA, 
-8L), class = "data.frame")

这个ggplot2()条形图:

require(ggplot2)
ggplot(data, aes(x=Categoria, y=Vagas, fill=relevel(factor(Estado),'Providas'))) +   
  geom_bar(position='dodge', stat='identity') +
  ggtitle(substitute(atop(titulo, atop(subtitulo)),list(titulo=paste(data[1,1:2],collapse=' - '),subtitulo=data[1,3]))) +
  theme(legend.position = "bottom") +
  xlab("Categoria") +
  ylab("Vagas") +
  scale_fill_grey('') +
  theme(panel.background = element_rect(fill='white'),panel.grid.major = element_line(colour = "gray70", linetype = 2)) +
  geom_text(aes(x=Categoria, y=Vagas/2, label = sprintf("%1.0f", Vagas)),position = position_dodge(height=1,width=1), size=4, colour='white') +
  facet_wrap( ~ Comp) 

导致:

我想只在ligth grey column(Categoria = Criadas)中更改文本的颜色.我已经尝试在colour参数中使用两个值,但它不起作用.我做的最接近的结果是当我colour=relevel(factor(Estado),'Providas'))在里面添加时aes(),但文字是粉红色和蓝色,并添加了一个我不想要的新图例.

Answer 1

如果您使用colour=relevel(factor(Estado),'Providas'))呼叫,它应该工作,但添加

+ scale_color_manual(values =c('white', 'black'),guide="none")

黑色是你想要的任何颜色.