Quality and Reliability Methods - SAS

46 Statistical Control Charts Chapter 2
Saving and Retrieving Limits
Figure 2.19 Example of Saving Limits in a Data Table
A list of limit key words and their associated control chart is shown in Table 2.3 on page 47.
Note that values for _KSigma, _Alpha, and _Range Span can be specified in the Control Chart Launch
dialog. JMP always looks at the values from the dialog first. Values specified in the dialog take precedence
over those in an active Limits Table.
The Control Chart command ignores rows with unknown key words and rows marked with the excluded
row state. Except for _Range Span, _KSigma, _Alpha, and _Sample Size, any needed values not specified
are estimated from the data.
As an aid when referencing Table 2.3 on page 47, the following list summarizes the kinds of charts
available in the Control Chart platform:
• Run charts
• Variables charts are the following types:
– X -chart (Mean)
– R-chart (range)
– S-chart (standard deviation)
– IM chart (individual measurement)
– MR chart (moving range)
– UWMA chart (uniformly weighted moving average)