¿Cómo puedo subcontratar una tabla basada en valores y devolver esos valores? Esto devuelve solo índices:

with(chickwts, table(feed))
with(chickwts, table(feed)) > 11
which(with(chickwts, table(feed)) > 11)

Salida

> 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