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如何修改此代码以使其具有一个绘图,以便它在图形上显示 其每个点的相应行号作为标签。将标签*行号*添加到绘图
inter <- seq(7.5, 21.5, 1)
LogDifference <- c("na",1.5,0.8,0.6,0.01,-0.57,-0.11,0.41,0.068,-0.19,-0.31,0.05,0.14,0.6,0.5)
S<-data.frame(inter,LogDifference)
plot(x = S$inter,S$LogDifference)