Create a Probability Distribution from an Existing Query or Dataset

Steps

  1. Access the RA Overview page.

    Hint: You can also access the RA Overview page for a selected Asset Hierarchy Level.

  2. In the upper-right corner, select , and then select Probability Distribution.

    The Probability Distribution Builder window appears, displaying the Define New Analysis screen.

    Define New Analysis

    Note: All required information is provided, but for additional information, consult the Distribution Analysis Families topic.

  3. Enter values in the Analysis Name and Description fields for the new analysis, and then select Next.

    The Select Data Source Type screen appears. The Data will be based on an existing Query option is selected by default.

    Select Data Source Type

  4. If you want to load data using an existing query, select Next.

    The Select Query screen appears.

    Select Query

    -or-

    If you want to load data using an existing dataset, select Data will be based on an existing Dataset, and then select Next.

    The Select Dataset screen appears.

    Select Dataset

  5. Select Browse to search for an existing query or dataset in the Meridium Enterprise APM Catalog.

    The Select a query from the catalog or Select a dataset from the catalog window appears, depending on whether you selected Data will be based on an existing Query or Data will be based on an existing Dataset in the previous step.

    The following image shows the screen to select a query:

    Select a Query From a Catalog

  6. Select the required query or dataset, and then select Open.

    The complete path to the query or dataset is displayed in the Query or Dataset box. The fields that exist for the selected query or dataset appear in the Available Fields list.

    The following image shows the path to a selected query and the fields in the Available Fields list:

    Select Query

  7. Select Next.

    The Select Data Fields screen appears.

    Select Data Fields

  8. As necessary, specify values in the following fields:

    1. In the Random Variable list, select a numeric value. This is a required field. A random variable associates a numerical value with every event. It describes a (possibly infinite) set of different events having a related probabilistic structure. The probability distribution of the random variable is a function that maps each possible value of the random variable to a particular probability.
    2. In the Censored list, select a field that indicates censored values (i.e., not included in the Probability Distribution Analysis calculations). The selected field must be a logical field. This is an optional field.
  9. Select Next.

    The Specify Random Variable screen appears.

    Specify Random Variable

  10. In the Random Variable Name box, enter the name of the Random Variable.
  11. In the Units of Random Variable box, enter the units of measure for the Random Variable selected above.
  12. Select Finish.

    The Meridium Enterprise APM system generates the analysis and the Probability Distribution page appears, displaying the analysis results.

    Analysis Summary

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