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Apply an MLR Model

Command: Math -> Multiple Regression -> Multiple Linear Regression -> Apply Model...

The command Math/Multiple Regression/Multiple Linear Regression/Apply Model... allows to apply previously calculated and stored MLR or ridge regression models(1) to other data sets. After loading the model the most important model parameters are shown:

When clicking the button "Apply Model", first the validity of the model is checked by matching the model variables and the variables of the current data set (the matching is performed by comparing the variable names). If the variables match, the user has to select the target variable, otherwise an error message is displayed. The target column is named after the model name and is marked by the preceding string [*].

Hint: If one of the independent variables of the model is selected as the target column (option "store in data matrix"), the model cannot be applied a second time since the basis of the model will be destroyed. It is therefore recommended to append the results of a model as an extra column (option "append results to matrix") or to store the results in the matrix clipboard.

(1) Please note that MLR and ridge regression are structurally similar. Thus this dialog window can be used both for standard MLR and ridge regression models. You can recognize whether the model is a standard MLR or a ridge model by looking at the Lambda parameter: if it is displayed the model is based on ridge regression, otherwise it is an MLR model.

Last Update: 2013-Nov-18