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Jun 16, 2010 8:30 PM
(975 views)

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

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

1 REPLY

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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.