====== Selecting parameters and outputs ====== After defining a model, the model parameters and outputs to be used in the Sensitivity Analysis must be selected in the Parameter selection editor. ==== Grouping of parameters ==== Two or more selected parameters can be assigned to a group. In this way, the influence of each of the selected parameters as well as any combination of them is accounted for when computing the sensitivity indices on a given output. The defined groups are only used in the Sobol group indices or EFAST method. For other methods any assigned groups are ignored.