Clearing waveform graph with my VI

I know how to clear the waveform graph using feed back array .But my case is different .I attached the VI with which I need help.
Basically I will be reading voltages from Yokogawa 200 which I used random number generator in the program .I need to plot the waveform graph between 3 and 4 mins once the program is started.
Please let me know how can I clear my history.
Attachments:
simulated.vi ‏23 KB

You continue to make this much more complicated than it needs to be. You are eligible for the Rube Goldberg thread. You've ignored the modifications I made to your VI in this thread where you asked the same question. Here's a modification with a graph. If you want to ignore suggestions for your problems, maybe you should stop asking for help.Message Edited by Dennis Knutson on 08-14-2007 08:23 AM
Attachments:
simulated_mod2.vi ‏15 KB

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