ISO 21747 / DIN 55319 Process Capability Setup Dialog and Quick Tab
Select
Process Capability ISO/DIN (Time dependent distribution model) from the
Process Analysis Procedures Startup Panel - Quick tab to display the
ISO 21747 - Process Capability Setup dialog box /
DIN 55319 -
Process Capability Setup dialog box.
When the
ISO 21747 option button (located in the
Select standard group box) is selected, the name of the dialog box is
ISO 21747 - Process Capability Setup, and it contains the following eight tabs:
Quick,
Grouping,
Distributions,
Outliers & tests,
Normality,
Method option,
Options M2, M3, and
Options M1 (l,d).
When the
DIN 55319 option button is selected, the name of the dialog box is
DIN 55319 - Process Capability Setup, and it contains the following eight tabs:
Quick,
Grouping,
Distributions,
Outliers & tests,
Normality,
Method option,
Options M3 M4, and
Options M5, M6.
OK
Click the
OK button to display the Process Capability Results dialog box.
Cancel
Click the
Cancel button to close the dialog box without performing an analysis and return to the
Process Analysis Procedures Startup Panel.
Options
Click the
Options button to display the
Options menu.
Select Cases
Click the
Select Cases button to display the Analysis/Graph Case Selection Conditions dialog box, which is used to create conditions for which cases will be included (or excluded) in the current analysis. More information is available in the case selection conditions overview and syntax summary. Note that other options are provided in the subsequent dialogs to specifically identify observations that are to be used as a test sample (see also the Overview for details).
W
Click the W (Weight) button to display the Analysis/Graph Case Weights dialog box, which is used to adjust the contribution of individual cases to the outcome of the current analysis by "weighting" those cases in proportion to the values of a selected variable.
By Group
Click the
By Group button to display the By Group specification dialog box.
Select standard
Select one of two standard options,
ISO 21747 or
DIN 55319.
Quick Tab
Select the
Quick tab of the
Process Capability Analysis Setup dialog box to access options to select the variables for the analysis and optional grouping variable with sample codes (if the data consist of multiple samples, e.g., if the data were collected to produce a quality control chart).
Variables
Click the
Variables button to display the standard variable selection dialog box, in which you select the variables with the process measurements of interest, and an optional grouping variable with codes to identify to which sample each observation belongs. If a grouping variable is specified, then Statistica will compute capability indices (based on the inherent variation) and performance indices (based on the total variation; see ASQC/AIAG, 1991).
Process specs
The
Process specs button is only available after
Variables have been selected. Click the
Process specs button to display the Enter/edit specification limits dialog box, in which you specify the process (engineering) specification limits from which the capability indices (e.g. Cpk) and performance indices (e.g. Ppk) will be calculated.