PCA
Select Principal component analysis (PCA) from either the Multivariate Statistical Process Control Startup Panel Quick tab or the PCA/PLS Startup Panel Quick tab, and click the OK button to display the PCA dialog box. Note that you can also double-click on Principal component analysis (PCA) to display the dialog box, which contains five tabs: Quick, NIPALS, Fitting, Options, and Advanced. Use these options to analyze data, using the method of Principal Component Analysis (PCA), for the purpose of dimensionality reduction, variables diagnostics, and outlier detection. The latter is particularly useful for process monitoring and quality control.
See also, MSPC Technical Notes and PCA and PLS Technical Details.
| Element Name | Description |
|---|---|
| OK | After specifying options, click this button to start running the principal components algorithm (NIPALS) and display the Results dialog box. |
| Cancel | Click the Cancel button to close the PCA dialog box and return to the Startup Panel without performing an analysis. |
| Options | Click the Options button to display the Options menu. |
| Open Data | Click the Open Data button to display the Select Data Source dialog box, which contains options to choose the spreadsheet on which to perform the analysis. The Select Data Source dialog box contains a list of the spreadsheets that are currently active. |
| Select Cases | Click the Select Cases button to display the Analysis/Graph Case Selection Conditions dialog box, which contains options 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, syntax summary, and dialog box description. |