如何基於值對錶進行子集並返回這些值?這將返回剛剛指數:如何在R中對錶對象進行子集化?
with(chickwts, table(feed))
with(chickwts, table(feed)) > 11
which(with(chickwts, table(feed)) > 11)
輸出
> with(chickwts, table(feed))
feed
casein horsebean linseed meatmeal soybean sunflower
12 10 12 11 14 12
> with(chickwts, table(feed)) > 11
feed
casein horsebean linseed meatmeal soybean sunflower
TRUE FALSE TRUE FALSE TRUE TRUE
> which(with(chickwts, table(feed)) > 11)
casein linseed soybean sunflower
1 3 5 6
啊,是的,當然,謝謝! – jrara
或者有點重複的代碼:'with(chickwts,table(feed)[table(feed)> 11])' – A5C1D2H2I1M1N2O1R2T1