Perfect! Thanks for the help.

I'm trying to get a sound sensor to control a servo or motor they way a potentiometer would.  The problem is that the sound sensor hiccups a value to zero about every third millisecond or so, no matter the input.  This sends the servo wiggy.  I used a modified version of the smoothing example, but that cuts my highest results in half, and the thing is still kinda jittery.  All I want to do is to have the Arduino ignore a reading of 0.  I'm just not sure how to do that.  Please help.