Related Topics:
	Standard Folios

Alter Parameters

The Alter Parameters feature is available for any data set calculated using any model except the Crow Extended and Crow Extended - Continuous Evaluation. Furthermore, for data sets calculated with the Crow-AMSAA (NHPP) model, this functionality is not available for Change of Slope calculations.

This feature enables you to experiment with possible alternative scenarios by allowing you to alter the values of the calculated parameters, assuming that the likelihood function and the Fisher Matrix (evaluated at the original parameter estimates) remain the same. In plots, the position of the data points remain the same but the solution line and all subsequent analyses made via the Quick Calculation Pad and other tools are based on the modified parameter values. Therefore, the analysis may be appropriate only within the context of your specific "what-if" analysis.

To use this feature, choose Growth Data > Options > Alter Parameters or click the icon on the Main page of the control panel.

The Alter Parameters window appears. Type the new value for the parameter(s) you wish to change. The new value of the parameters will appear in the Results area of the standard folio control panel with the label "User Modified," as shown in the following example.