[julia-users] Re: How Do You Filter Rows in a DataFrame Based on a Set of Interest or Specific Pattern?

[Nils Gudat]

I'm not a pro when it comes to DataFrames, but for your first application 
you might want to look at findin? 

I believe you could achieve your goal by doing:

data_frame_value_in_set = data_frame[findin(data_frame[:quality], [7,8]), :]

This should return all rows where "quality" is either 7 or 8, and should 
trivially extend to any Array you might want to put instead of [7,8] in 
this example.