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Adding virtual fields

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Create fields based on the ones that are available in the set of input fields. Virtual fields offer the ability to test different ways of treating the same data.

  1. In the Data analysis step, click New virtual field.

  2. In the Virtual field dialog box, in the Name field, enter a unique identifier.

  3. Optional:

    In the Description field, enter a description.

  4. Construct a formula that defines the virtual field:

    1. Click Functions and select the required function from the list. Click Insert.

    2. Click Fields and select the required field from the list. Click Insert.

    3. Optional:

      To check the correctness of the formula, click Validate.

  5. Confirm the formula by clicking Save & close.

  6. In the Data analysis step, select the new virtual field and change its role type:

    • For the numeric virtual field, change the role to predictor, value, ignored, benchmark, previous score, or benchmark inference.
    • For the symbolic virtual field, change the role to predictor, ignored, or value.

    For more information on the role types, see Defining the predictor role.

  7. Optional:

    Set the virtual field as Defining an outcome.

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