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- How to change 'µ0' to 'mean' on a control chart?

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Jul 14, 2014 11:45 PM
(2053 views)

Hi,

When I run a control chart, the average is expressed as 'µ0'. This is not incorrect, however, our quality department would like to see 'Mean' instead. Is there a way to change the label from 'µ0' to 'Mean'?

Thanx

Names Default To Here( 1 );

dt = Open( "$SAMPLE_DATA/Quality Control/Coating.jmp" );

obj = Control Chart( Sample Size( :Sample ), Chart Col( :Weight, XBar, R ), Get Limits( "$SAMPLE_DATA/Quality Control/CoatingLimits.jmp" ) );

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Jul 15, 2014 7:03 AM
(3860 views)

Solution

Unfortunately, there's no good way to override that labeling. That's what we use to indicate the limits are specified rather computed.

The Control Chart Builder platform handles this a bit differently. It provides a Limits Summaries report instead of labeling the limits lines.

Names Default To Here

(1);dt = Open

("$SAMPLE_DATA/Quality Control/Coating.jmp"

);obj =

Control Chart Builder

(Variables

(Subgroup

(:Sample),Y

(:Weight)

),Chart

(Position

(1),Points

(Statistic("Average")),Limits

(Sigma("Range"))

),Chart

(Position

(2),Points

(Statistic("Range")),Limits

(Sigma("Range"))

),Get Limits

("$SAMPLE_DATA/Quality Control/CoatingLimits.jmp"

)

);

-Jeff

-Jeff

2 REPLIES

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Jul 15, 2014 7:03 AM
(3861 views)

Unfortunately, there's no good way to override that labeling. That's what we use to indicate the limits are specified rather computed.

The Control Chart Builder platform handles this a bit differently. It provides a Limits Summaries report instead of labeling the limits lines.

Names Default To Here

(1);dt = Open

("$SAMPLE_DATA/Quality Control/Coating.jmp"

);obj =

Control Chart Builder

(Variables

(Subgroup

(:Sample),Y

(:Weight)

),Chart

(Position

(1),Points

(Statistic("Average")),Limits

(Sigma("Range"))

),Chart

(Position

(2),Points

(Statistic("Range")),Limits

(Sigma("Range"))

),Get Limits

("$SAMPLE_DATA/Quality Control/CoatingLimits.jmp"

)

);

-Jeff

-Jeff

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Jul 17, 2014 6:46 AM
(1930 views)

Thank you. It might not be the answer I was looking for, but I did expect it, since I could not access the 'µ0' label using the GUI.

Jan