gen_data                Generate data through a factor matrix and
                        effects matrix.
grid_search             Run a function iteratively using a grid search
                        approach for parameter values, with options for
                        parallel processing.
lm_error_var            Calculate error variance given model
                        coefficients.
n.iter                  Return the number of iterations performed by a
                        parameter test.
print.paramtest_summary
                        Print summary of parameter tests.
random_search           Run a function iteratively using a random
                        search approach for parameter values, with
                        options for parallel processing.
results                 Return results of a parameter test.
run_test                Run a function iteratively, with options for
                        parallel processing.
summary.paramtest       Print summary of parameter tests.
tests                   Return the parameter values that were tested by
                        paramtest.
timing                  Return the timing information of a parameter
                        test.
