Configuring the Adaptive DOE Technique

You can configure the Adaptive DOE technique to run a single execution of a space-filling DOE. You can optionally provide a data file containing a set of points to be avoided by the space-filling algorithm.

See Also
Adaptive DOE Technique
About Seeds
  1. From the Flow section of the action bar, click DOE , and drop it on the process diagram.
  2. Double-click DOE .
    The DOE Editor appears.
  3. From the General tab's DOE Technique list, select Adaptive DOE.
  4. Enter the Number of Points that you want to study.

    For each defined factor, Optimization Process Composer varies the values between the specified lower and upper values to maximally fill the search space.

  5. Enter the Significant Step Size to control the minimum distance between any two points in the search space.

    The size is a fraction of the domain (upper bound minus lower bound) of each factor and must be a positive number. To find more subtle gradients, you should enter a small value, such as 0.001. To filter noise, you should enter a large value, such as 0.05.

  6. Optional: Select Use a fixed random seed, and enter the seed.

    If you do not select this option, Optimization Process Composer determines the seed randomly.

    Note: You can also specify a fixed seed for the entire model. If you specify a seed for a DOE component, it takes precedence over the seed defined for the model.

  7. Optional: Select Read Prior Results to prescribe an arbitrary set of previously run design points that the Adaptive DOE space-filling algorithm should avoid when calculating the design matrix.

    The points are read from a file in the working directory called DOE_Results.txt.

  8. Optional: Select Write Current Results to save the current design points in DOE_Results.txt in the working directory. You can use the file to seed the next iteration of the Adaptive DOE.
  9. Click Ok to save your changes and to close the DOE Editor.