A Corny Question

Hi all,
I bought some Glass Gem corn seeds, and I'm going to plant them soon.  I'm here in San Francisco, where it's usually cool and foggy.  I'm wondering which is a better way to plant them: in rows, or Indian style, in clumps?  I don't have a big space.  Which way gets the best yield for the space?

I don't know if this helps but not all native Americans grew/grow it in clumps, the Tarahumara grow theirs in fields and plant beans around the perimeter. Not sure what benefit that has but it does seem like it'd give a good bean to corn ratio.