Result window


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When you open the Result window for a variable, it computes its value if it hasn’t previously cached it, and displays it. If the value is an array or a probability distribution, you can display it as a table or graph. Here is a Result window with a table and equivalent graph.

Result controls:

Chapter2 1.png

To open a Result window: Click the variable node in its influence diagram to select it, and do one of these:

  • Click the Result button ToolbarResultButton.png in the toolbar, or press key Control+r.
  • Select Show Result from the Result menu.
  • Select an uncertainty view option, such as Mid Value, Mean Value, or Cumulative probability, from the Result menu, or from the right-mouse context menu.
  • In the Attribute panel below a diagram, select Value or Probvalue from the Attribute menu, and click the Calc or Result button.

To open a Result window for an output node, simply click its Calc or Result button.

Result controls: The Result controls, in the upper-left corner of the Result window include these controls:

Chapter2 3.png Press the Uncertainty View popup menu, to select how to display an uncertain quantity.
Chapter2 4.png Click this button to display the result as a table.
Chapter2 5.png Click this button to display the result as a graph.

Toggle between the table and graph views using the Table View and Graph View buttons.

Index selection

The Index selection area is the top part of a Result window. For a table, it shows which index goes down the rows, and which goes across the columns. For a graph, it shows which index is on the X axis (and sometimes Y axis) and which is in the key. For either view, if the array has too many dimensions to display directly, it also shows slicers that select the values of the extra indexes. Each control has a popup menu to let you exchange indexes and rearrange (pivot) the view.

Chapter2 6.png

The index selection area of a graph or table contains these items (example variables and indexes in the following text refer to the figure above):

Title: Shows the uncertainty view (mid, mean, etc.), the title of the variable, and its units, e.g., Mid Value of Costs of buying and renting ($).

Slicer index: The title, units, and value of any index(es) showing dimensions not currently displayed in the table or graph.

Slicer menu: Press Chapter2 7.png for a popup menu from which you can change the slicer value for the results displayed.

Slicer stepper arrowsClick Chapter2 8.png or Chapter2 9.png to cycle up or down through the slicer values.

Row or key indexShows the title of the index displayed down rows for a table, or in the color key for a graph. Press to open a menu from which you can select another index.

Chapter2 10.png

Column or X axis index: Shows the title of the index displayed across the columns for a table, or along the X (horizontal) axis for a graph. Press to open a menu from which you can select another index.

XY button: Click Chapter2 11.png to plot this variable against one or more other variables, or to plot one slice of this variable against another slice. See XY Comparison.

Totals checkboxes: Check a box to show row or column totals the table view. If you check Totals for an index and then pivot it to be a slicer index, “Totals” becomes its default slicer value. This lets you show total values over the slicer index in the graph or table.

The default view

When you first display a result for a variable, by default, it displays it as graph, if possible, and otherwise as a table. You can change this default in the Default result view in the Preferences dialog.

When you display the Result window again, it uses all the options you last selected when you viewed this variable, including table versus graph, uncertainty view, index pivoting and slicer values, and any graph settings.

Recomputing results

If you change a predecessor of a variable shown in a Result window, the table or graph disappears from the window and is replaced by a Calculate button.

Chapter2 12.png

Click Calculate to compute and display the new value.

See Also


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