Simulation Results Window

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After performing a Monte Carlo simulation with ModelRisk you can view the generated results in the ModelRisk Simulation Results window by clicking the Results icon:

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The ModelRisk Simulation Results window will also open automatically if the ‘Show results window at end of simulation’ option has been selected in the Simulations Settings Dialog.

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On the left is a list of the Outputs and Inputs of the simulated model which have been defined by the VoseOutput and VoseInput functions. On the right is the selected graph.

Graphical reports

When the Simulation Results window first opens it will display a histogram of the first alphabetically listed output. The graph type can be changed by clicking any of the graphical icons:

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These will display, in order:

Histogram plots;

Cumulative ascending plots;

Cumulative descending plots;

Box plots;

Time series plots;

Spider plots;

Scatter plots; and

Tornado plots

Click the link for each plot type to view a detailed description of its use and meaning.

Editing, copying, zooming and printing graphs

Each ModelRisk result graph can be edited by right-mouse clicking over graph components like titles. The user can zoom in on a section of the graph by clicking  image719.gif and then selecting a region to display. Graphs can also be copied at a Bitmap, Metafile or Text by clicking image720.gif . Graphs can be printed by clicking image721.gif .

Statistical and data reports

ModelRisk offers three kinds of statistics and data reports:

Table of all generated input and output values

Clicking on the Data List icon:

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opens a list of all generated values, sorted by the order in which they were generated:

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Clicking on a column selects the data. Right-click then allows one to copy these data and then paste into another document (Word, Excel, etc) for further analysis. CTRL-Click allows you to select several non-contiguous columns of data. SHIFT-Click allows you to select a set of contiguous columns.

Table of statistics

Clicking on the Statistics icon:

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opens a list of statistics for the selected inputs and outputs:

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Clicking the Options button allows you to increase the number of percentiles reported.

Reports

Clicking on the Reports icon:

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opens the following dialog box:

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Selecting ‘Report selected Charts’ will create a report in Excel that is a replica of the pages the user has created in the ModelRisk Simulation Results window. Ticking the ‘Charts’ box will place the charts you have created in Excel. Ticking the ‘Values’ box will place into the spreadsheet all the data used to create the reports which can be used for further analysis if required.

Selecting ‘Report all variables’ will generate the ticked reports for all inputs and outputs. One should be careful using this second option if there are a lot of inputs and outputs because it will generate a very large file.

Pages (tabs)

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Right-clicking any tab name allows you to rename the tab, or to make a copy. Making a copy is useful if, for example, you wish to show two slightly different versions of the same plot e.g. the same tornado plot but with one variable removed, or based on a different output statistic.

If there are two or more pages present, right-clicking a page’s tab will also allow you to delete the page.

Clicking the AddPage tab will immediately create a new page called ‘New’. In this way you can build up an entire electronic report of your simulation results:

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Saving the report

Once you are satisfied with your report you can save it as a file independently of your model by clicking the save button and selecting a destination folder and file name:

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The simulation results are stored with a .vmrs (Vose ModelRisk Simulation) extension.

The simulation results file can then be reloaded without opening the simulated model later by clicking the open button:

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and browsing for its location.

Filtering results

Simulation results can be filtered so that one can look specifically at sets of generated scenarios, as follows:

(1) Select the input or output of interest

(2) Click the filter icon image726.gif . This opens a dialog box:

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(3) Select how you wish to filter the simulation data. In this example, the results are filtered to show generated scenarios in which the selected output’s value is less than or equal to zero. Click OK.

(4) The results shown are now filtered as required. The figure below shows the modified histogram for the output, and also a small filter icon against the Output listing to show that a filter is active:

Hovering over the filtered output with the mouse shows the filter that has been applied as a tool tip pop-up:

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Right-mouse clicking on the filtered output allows you to edit or delete the filtering for this variable:

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Tracking locations of Inputs and Outputs within the spreadsheet

Clicking on an Input or Output in the list within the ModelRisk Simulation Results window will make the location of the active cell within Excel move to the location of that Input or Output, providing that the model is open in Excel. This makes it very easy to browse through your simulation results and model together.