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Access the Management Portal and go to the namespace into which you installed the samples, as described earlier.
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Navigate to Home > Analytics > Architect.
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Click New. The system displays a dialog box.
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In this dialog box, specify the following:
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Definition Type: Cube — Select this.
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Cube Name — Tutorial
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Source Class — Click the Browse button, select BI.Study.Patient, and click OK.
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Class Name for the Cube — Tutorial.Cube
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Click OK.
The system creates the cube class, which you can also view and modify in Studio.
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Click the bold top row in the middle area (labeled Tutorial). This selects the cube so that you can edit its details on the right.
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In the Details Pane, type None into Null replacement string.
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Click Save and then click OK.
The system updates the cube class.
Important:
The Class Viewer provide a useful view of the class properties (apart from relationship properties) of your base class, which makes it very easy to create InterSystems IRIS Business Intelligence elements based on those properties. It is important, however, to know that although this view provides a convenient way to access some properties, you can also use a source expression to access any data. These source expressions are evaluated when the cube is built and thus do not affect your runtime performance. This tutorial demonstrates these points later.
