TMPCA - Quick Tab
Select the Quick tab of the TMPCA dialog box to access options to select variables for the analysis and identify codes for categorical variables (batch, time and factor).
| Element Name | Description |
|---|---|
| Variables | Click the Variables button to display a four-list variable selection dialog box, from which you need to select a single batch and a single time variable. The batch variable associates an observation to a batch and the time variable identifies the time slot in which the observation was made.
Depending on whether the Aggregated (stacked) data check box (see below) is selected, you will also need to select one of the following sets of variables: For nonaggregated data, select at least two continuous and/or categorical variables. Each continuous or categorical variable records the measurements of a process variable such as temperature, pressure, feed-rate, etc. For aggregated data, select a single process and measurement variable. As the name indicates, the process variable contains the names/identifications of the process variables that were subjected to measurements during the batch run. Alternately, a measurement variable records measurements taken for various process variables (during the batch run), whose names/identifications are recorded in the process variable. |
| Aggregated (stacked) data | Select this check box if the data set is recorded in aggregated format. In an aggregated data set, a single column records the name/identity of the process variables while another column records the value of the measurements. |
| Batch codes | This button is available only if a batch variable has been specified. Click the Batch code button to display the Select batch codes dialog box, which is used to select codes for the batch variable. The list of codes can be displayed by clicking the Zoom button in this dialog box. Note that you must select at least two codes for the selected variable. |
| Time codes | This button is available only if a time variable has been specified. Click the Time codes button to display the Select response codes dialog box, which is used to select codes for the dependent variables. The list of codes can be displayed by clicking the Zoom button in this dialog box. Note that you must select at least two codes for the selected dependent variable. |
| Factor codes | This button is available after variables have been selected and only if they include at least one categorical variable. Click this button to display the Select factor codes dialog box, which is used to select codes for the categorical factors. The list of codes can be displayed by clicking the Zoom button in this dialog. Note that you must select at least two codes for the selected categorical factor. |
| Data in raw form | When this check box is selected, MSPC will utilize Extract, Transform, and Load (ETL) functionality to convert "raw" datetime values (e.g., 3/17/2009 5:32 PM) into discrete time interval steps (e.g., 1, 2, 3). When the check box is cleared, MSPC will assume the data set already contains datetime values in the form of discrete time interval steps (e.g., 1, 2, 3).
For an example of how the ETL options are used in MSPC, see MSPC Raw Data Example. |
| Time intervals | This option is enabled when the Data in raw form check box is selected. The default value for (N-equal) time intervals is 50, with a lower bound of 2 and an upper bound of 100,000. Intervals are computed using the method specified by the Computation of percentiles option, located on the Limits tab of the Options dialog box [accessed by selecting Options from the Tools menu (classic menus) or by clicking Options in the Tools group of the Home tab (ribbon bar)]. The default method is Empirical Distribution Function w/Average. |