我有一个条形图 (stat=identity) 并且想用 N（每个条的值的数量）标记条。我有正负条的问题。一种解决方案可能是将正条的标签以白色或白色书写，以将它们写在顶部。
ggplot(AP_Group, aes(Labels, Mean))+
geom_bar(stat = "identity") +
theme_minimal() +
ggtitle(expression(paste("Air Pressure - C_PM"[1], " - All Season"))) +
xlab("Air Pressure [hPa]") +
ylab("Shap Value") +
geom_text(aes(label=N), color="black", size=3.5, vjust = 1.8) +
theme(plot.title = element_text(color="black", size=14, margin = margin(t = 0, r = 0, b = 15, l = 0)),
axis.title.x = element_text(color="black", size=14, margin = margin(t = 15, r = 0, b = 0, l = 0)),
axis.title.y = element_text(color="black", size=14, margin = margin(t = …