Define Group
The Define button group includes all of the functions for building a full model, including the tools to define inputs using both @RISK functions representing standard probability distributions, tools to fit a distribution to existing data, and create time series and correlations.
![](../../Resources/Images/Buttons/RISK/buttonDistribution.png)
Distribution
Add or edit probability distributions in the formula for the currently selected cell.
![](../../Resources/Images/Buttons/RISK/buttonOutput.png)
Output
Add the currently selected cell or range of cells as a simulation output.
![](../../Resources/Images/Buttons/RISK/buttonFit.png)
Fit
Fits a distribution to a set of data.
![](../../Resources/Images/Buttons/RISK/buttonTimeSeries.png)
Time Series
Add or edit a time series model.
![](../../Resources/Images/Buttons/RISK/buttonCorrelation.png)
Correlation
Defines correlations (or copulas) for probability distributions or related input variables.
![](../../Resources/Images/Buttons/RISK/buttonFunction.png)
Function
Inserts an @RISK function in the selected cell.
![](../../Resources/Images/Buttons/RISK/buttonModel.png)
Model
Displays a list of the current output cells along with all distribution functions entered in the worksheet.