Changes in version 2025-06-14 o Modified appearance of dialog box. Changes in version 2025-04-29 o Added a dialog box for collecting responses to questions. o Added a help file. o Added CITATION. o Modified a function. o Modified a help file. o Modified DESCRIPTION. Changes in version 2024-05-21 o Modified functions. o Modified help files. o Modified DESCRIPTION. Changes in version 2024-03-06 o Added help files. o Modified appearances of dialog boxes. o Modified function names. Changes in version 2023-12-06 o Modified dialog boxes for designing choice sets, creating data set, and fitting model. Changes in version 2023-11-23 o Removed two dialog boxes for import. o Modified the remaining dialog boxes. o Added a new dialog box for creating interactions. o Added a new dialog box for loading saved objects. Changes in version 2023-10-04 o First release to CRAN.