R语言(上课笔记)

x<-1:20 y<-x^2 plot(x,y,col="tomato",ann=F) title(main = "标题",col.main="red",sub="副标题",col.sub="brown",xlab="X坐标轴",ylab="y坐标轴",col.sub="navy",cex.main=2,cex.sub=1.25,font.sub=3) y<-function(x)(exp(-(

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