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itobin
2009 Nov 11
2
plotting moving range control chart
Dear R People:
I am using qcc for a quality control class.
I have used qcc with type "xbar.one" for individuals but cannot
determine how to plot a moving range control chart.
Has anyone done that, please?
Thanks,
Erin
--
Erin Hodgess
Associate Professor
Department of Computer and Mathematical Sciences
University of Houston - Downtown
mailto: erinm.hodgess at gmail.com