Design of Experiments Guide • Definitive Screening Designs • Definitive Screening Design Options
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Definitive Screening Design Options
The red triangle menu in the Definitive Screening Design platform contains these options:
Save Responses
Creates a data table containing a row for each response with a column called Response Name that identifies the responses. Four additional columns contain the Lower Limit, Upper Limit, Response Goal, and Importance. Saving responses allows you to quickly load them into a DOE window.
Load Responses
Loads responses that you have saved using the Save Responses option.
Save Factors
Creates a data table containing a column for each factor that contains its factor levels. A factor’s column contains column properties associated with the factor. Saving factors allows you to quickly load them into a DOE window.
Note: It is possible to create a factors table by typing data into an empty table, but remember to assign each column an appropriate Design Role. Do this by right-clicking on the column name in the data grid and selecting Column Properties > Design Role. In the Design Role area, select the appropriate role.
Load Factors
Loads factors that you have saved using the Save Factors option.
Save Constraints
(Unavailable for some platforms) Saves factor constraints that you have defined in the Define Factor Constraints or Linear Constraints outline. The Save Constraints option creates a data table that contains a column for each constraint. Saving constraints allows you to quickly load them into a DOE window.
The constraint table contains a column for each linear constraint. The first rows contain the coefficients for each factor. The last row contains the inequality bound. Each constraint’s column contains a column property called ConstraintState that identifies the constraint as a “less than” or a “greater than” constraint. See Column Properties in Column Properties.
Load Constraints
(Unavailable for some platforms) Loads factor constraints that you have saved using the Save Constraints option.
Set Random Seed
Sets the random seed that JMP uses to control certain actions that have a random component. These actions include:
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simulating responses using the Simulate Responses option
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randomizing Run Order for design construction
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selecting a starting design for designs based on random starts.
To reproduce a design or simulated responses, enter the random seed used to generate them. For designs using random starts, set the seed before clicking Make Design. To control simulated responses or run order, set the seed before clicking Make Table.
Note that the random seed associated with a design is included in the DOE Dialog script that is saved to the design data table.
Simulate Responses
Adds response values to the design table that is generated. Select this option before you click Make Table. In the design table that results from clicking Make Table, the response columns contain simulated values.
For certain types of designs, a Simulate Responses window lists the coefficients and error standard deviation used to simulate the response values. You can replace these coefficients and click Apply to see your simulated response values in the data table. The default values for the coefficients are either 1 or -1. The default value for the error standard deviation is 1.
Some platforms allow you to set Anticipated Coefficients as part of Power Analysis under Design Evaluation. For these platforms, the default values in the Simulate Responses window are the values that you specify as Anticipated Coefficients and Anticipated RMSE (Error Std) in the Power Analysis outline. If it is not possible to fit the model specified in the data table’s Model script, the intercept and coefficients have default values of 0.
Note: You can set a preference to always simulate responses. Select File > Preferences > Platforms > DOE. Check Simulate Responses.
Advanced Options > Set Delta for Power
Specify the difference in the mean response that you want to detect for model effects. See Evaluate Design Options in Evaluate Designs.
Save Script to Script Window
Creates the script for the design that you specified in the Custom Design platform and saves it in an open script window.