2020-09-22

attach(warpbreaks) boxplot(warpbreaks$breaks~tension,col=heat.colors(2), main=list(「breaks按照tension分類的箱線圖」,font=4,col=「red」,cex=1.5), xlab=「wool」,ylab=「breaks」) barplot(as.matrix(warpbreaks[「breaks」])

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