Distributed Lags Analysis

Click the Distributed lags analysis button in the Time Series Analysis Startup Panel to display the Distributed Lags Analysis dialog box, which contains three tabs: Quick, Autocorrelations, and Review series.

Element Name Description
Summary: Distributed lags analysis Click the Summary: Distributed lags analysis button to display a spreadsheet for the Alpha weights (if Almon polynomial lags is selected on the Quick tab), a spreadsheet with the analysis of variance table, and a spreadsheet with the regression weights. For an overview on this method, refer to Distributed Lags Analysis (see also, Time Series Index). It is expected that you have already 1) selected the dependent variable by highlighting the respective series in the active work area, and 2) selected the independent variable via the Independent variable button on the Quick tab.
Active work area The Active work area is composed of three columns: Lock, Variable, and Long variable (series) name. For detailed information on the Active work area, see Time Series Analysis - Active Work Area.
Lock Double-click on a transformed variable in the Lock column to lock or unlock the variable in the active work area. An L is listed in the column to indicate that the variable is locked. Locked variables will not be replaced as successive transformations exceed the current maximum number of backups. Note that original (untransformed) variables are always locked, and they cannot be unlocked. For more information, see Active work area.
Variable The Variable column contains the short name of the variable(s) currently available for analysis. Click on a variable name in the list to highlight that variable (series) in the Active work area that is to be analyzed For more information, see Active Work Area.
Long variable (series) name When a new (e.g., transformed) variable is appended to the active work area, the Long variables (series) name column will display a new long variable name that consists of the old long variable name (as much of it as will fit) and a brief description of the respective transformation that was performed. For more information, see Active work area.
Number of backups per variable (series) The parameter entered in the Number of backups per variable (series) box determines the maximum number of backups (i.e., previous versions of the series) that is kept in the active work area for each variable. After a transformation (or other analysis) is performed on a series, the resulting transformed series (or residuals, forecasts, etc.) will be appended to the active work area, and the values of the series prior to the transformation will be maintained as a backup. When a new transformation is appended and the maximum number of backups for the respective original variable is exceeded, the "oldest" previous backup will be replaced. You can lock a variable (prevent it from being overwritten) by double-clicking on the respective variable in the Lock column. For more details, refer to Active Work Area.
Save variables Click the Save variables button to save the variables (series) that are currently available in the active work area into a standard STATISTICA data file (which can be used as input for subsequent analyses).
Delete Click the Delete button to delete the currently highlighted variable. To highlight a variable, click on it either in the Lock, Variable, or Long variable (series) name column.
Cancel Click the Cancel button to close the dialog without performing any transformation and return to the Time Series Analysis Startup Panel.
Options Click the Options button to display the Options menu.