[S] Moving Range Control Chart

[Marty Goss <goss@spk.hp.com>]

I have need of a function to produce a Moving Range control chart.
Has anyone already written moving average or moving range control
chart functions I could use?

Thanks,
Marty
 
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  Marty Goss                Hewlett Packard
  goss@spk.hp.com           24001 E. Mission Ave
  Telephone 509 921-3734    Liberty Lake,  WA  99019-9599
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