Sampling https://www.lsoptsupport.com/examples-4.0/subpages/linear/sampling https://www.lsoptsupport.com/@@site-logo/LS-Opt-Support-Logo480x80.png Sampling Choose the sampling Select the Sampling tab.For METAMODEL select from the list Polynomial.For Order of the Polynomial model we take Linear.Make sure that the Point Selection is set to D-Optimal, which is recommended.