How to show only edited files in Aperture

My question is: How do I filter Aperture to show items that I have made adjustments (crop, edited color etc.) ONLY

and vice versa, how do I show only my RAW images?

I want to display only my edited photos in Aperture, only the ones I have made changes to and be able to export them as JPEG's

I shoot in RAW, so would then like to export those original's as well

The reason for this is I am using Lightroom instead and would still like to work with some of the RAW images and not have them as JPEG's in LR or have to start over with my editing in LR