dplyr filter : value is contained in a vector

Question

Is there a straight way to filter using dplyr::filter given an specific vector?

I\'m looking for something like the code below:

top.food         


        

Answer 1

I think you are looking for the value matching function %in%.

filter(orders, dish %in% top.food)

Or you can switch to slice() and use match().

slice(orders, match(dish, top.food, 0L))

I believe that slice() is a bit faster than filter(), so that might be beneficial to you. See help(match) for all the details on value matching.