customer design the control chart test rule

Thu, 17 Jun 2010 03:30:06 GMT

Hi experts,
I want to define the QC test rule for given chart, any idea or script shared?

PR Rules:
PR1 1 point above 3 or below -3 sigma
PR2 2 of 3 points above 2 or below -2 sigma
PR3 4 of 5 points above 1 or below -1 sigma
PR4 8 or 8 points on same side of central line
PR5 7 consecutive ascending or descending points
WE Rules:
WE1 1 out of 1 points above 3 sigma
WE2 2 out of 3 points above 2 sigma
WE3 4 out of 5 points above 1 sigma
WE4 8 out of 8 points above central line
WE5 1 out of 1 points below -3 sigma
WE6 2 out of 3 points below -2 sigma
WE7 4 out of 5 points below -1 sigma
WE8 8 out of 8 points below central line
WE9 15 out of 15 points between -1 and 1 sigma
WE10 8 out of 8 points outside -1 and 1 sigma

Re: customer design the control chart test rule

louv — Thu, 17 Jun 2010 13:35:54 GMT

Go to File>Preferences>Platforms>Control Charts and check the rules for special causes that you want active. Also check out Help>Searches>Special Cause and you will be sent to the pdf that details the rules.

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customer design the control chart test rule

Re: customer design the control chart test rule