bbox1                   A black-box computer model
bbox2                   A black-box computer model
bbox3                   A black-box computer model
bbox4                   A black-box computer model
bbox5                   A black-box computer model
bbox6                   A black-box computer model
bbox7                   A black-box computer model
gram                    The Gramacy et. al 2016 test function
mtp                     The modified Townsend function
pressure                The pressure vessel computer model
tension                 The tension spring computer model
