That is a waveform. A waveform is a special class of cluster for equally spaced data. You can find them on the Programming>Waveform palette. There are several functions there specifically for waveforms for analysis and manipulation that will not work properly for your cluster. There is little to be lost and lots to be gained by using a waveform instead of a plain array or cluster.
Message Edited by jasonhill on 08-16-2006 04:55 PM