根据满足条件的行数对数据框进行子集

Question

如果一个观察值超过 3 行，有没有办法对我的数据框进行子集化？例如。我的数据看起来像：

ID    Food        Vegetable 
aaa   fruit       lemon 
bbb   fruit       lemon
ccc   fruit       sprout
ddd   fruit       lemon
eee   fruit       lemon
fff   fruit       watermelon

我希望它看起来像：

ID    Food        Vegetable 
aaa   fruit       lemon 
bbb   fruit       lemon
ddd   fruit       lemon
eee   fruit       lemon

   

结构：

structure(list(ID = c("aaa", "bbb", "ccc", "ddd", "eee", "fff"
    ), Food = c("fruit", "fruit", "fruit", "fruit", "fruit", "fruit"), Vegetable = c("lemon", 
    "lemon", "sprout", "lemon", "lemon", "watermelon")), class = "data.frame", row.names = c(NA, 
    -6L))

谢谢