Watch the Partial Chords online guitar lesson by TrueFire from Play Rock Guitar 4: Rhythm Principles
Partial Chords - Concept 18 is a video guitar lesson presented by Jennifer Batten and is sourced from Rock Sauce for Rhythm Guitar.
When comping, you have the option to play partial chords and intervals. Typically in a band, the bassist will cover the root so you're just being redundant if you play it as well. So, you can concentrate on playing other chord tones, intervals, and/or extensions (9, 11,13's), or alterations.