Configuring the Advanced Options

You can set advanced options that you want the DOE component to use when it executes.

  1. Double-click the DOE component icon .
    The DOE Component Editor appears.
  2. From the DOE Component Editor, click the General tab.
  3. In the Execution Options area, click Advanced Options and set the following:
    OptionDescription
    Execute designs in random order Select this option if you want the design points defined by the design matrix to execute in random order.

    Note: For computer simulations, which are deterministic, the order of execution has no bearing on the results. This option is provided primarily for cases in which the design matrix is going to be exported for use in physical experiments where randomness can alter the results through the influence of noise (unknown) effects.

    Execute subflow only once Select this option if you want to execute the subflow only one time. This capability is useful in models that need to turn the driver logic on/off parametrically. This option is also helpful in the debugging process if the model does not execute successfully.

    You can map this option to a parameter. For more information, see Mapping Options and Attributes to Parameters.

    Read response values from file Select this option if you do not want the DOE component to actually execute an Isight subflow for each design point but to instead read the response values for each design point from a specified file. Click Browse to locate the file.

    The format of the file must be a first row with parameter names, with each subsequent row containing the values for the parameters for that design point. This option is useful when you have a complete data set (input and output values) already compiled and want to use DOE as a postprocessing tool. This capability is more directly accessible using the Data File technique and selecting the File contains responses option. For more information about this technique, see About the DOE Techniques.

    Note: For the purpose of storing results in the results database, the DOE component still makes a call to execute the subflow for every design point. Therefore, any components that reside in the subflow are executed (unless they are disabled). Because the intent of this option is not to require execution of a subflow to obtain outputs, it is assumed that usually the subflow is empty.

    Allow the following items to be turned off by parameters Select this option if you want to turn off the selected types of design parameters (factors, responses) using input parameters to the DOE component. If this option is selected, Boolean input parameters are created in an Active Factors/Active Responses aggregate under the Mapped Options and Attributes aggregate parameter. The parameters are selected by default. If any of the parameters are not selected at run time, those design parameters will not be used during execution.
  4. Click Import configuration at runtime if you want to import the DOE component configuration from a file at run time.

    If selected, Isight creates an input file parameter on the DOE component called Configuration. You can point the Configuration file to a specific file or map it from a file parameter from a previous component in the simulation process flow. Click to configure the file parameter to point to the desired file. You can also configure this file on the Design Gateway Files tab. For information about importing/exporting and the file format, see About Importing and Exporting Configuration Files.

    You can map this setting to a parameter. For more information, see Mapping Options and Attributes to Parameters.

  5. Click OK to save your changes and to return to the DOE Component Editor.