Menu: View→Analysis Properties→Permutations→Random permutations
When this option is selected, any permutation tests that are performed are based on random permutations.
For more information, see the Permute method of the AmosEngine class.
Programming
In Amos Graphics programs, you can select this option by using the following statement (Visual Basic):
pd.GetRadioButton("AnalysisPropertiesForm", "OptionPermute_Random").Checked = True