ggplot(data=g2,aes(x=Var1,y=Freq))+geom_density(color='blue',size=0.1,alpha=I(0.3))+scale_x_continuous(limits=c(0,20000))
Error: Discrete value supplied to continuous scale

数据大概几万行  x轴没数字  用了scale函数报错 求教