In case my question has totally confused you, let me describe the situation, a general one which I'm sure some of you have already tackled.
Suppose you're acquiring data from several channels (let's say two waveforms). And you only want to capture their amplitudes (Y1, Y2,etc.) when either a button is pushed (i.e., things are steady state, now grab that data) or when something else has changed a certain amount (say their frequency has changed 2 Hz). When I say "capture", I simply mean grabbing the data into a separate array of X,Y values for later processing or on-line plotting while still acquiring data. Hopefully, this makes sense. Would greatly appreciate any thoughts on this, as it's a situation that I seem to run into often. All the best, Hunter
