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%% Apply Function with Multiple Outputs to Rows % Define and apply a geometric Brownian motion model to a range of parameters. % % Create a function in a file named |gbmSim.m| that contains the following code. % % <include>gbmSim.m</include> % %% % |gbmSim| accepts two inputs, |mu| and |sigma|, and returns four outputs, |m|, % |mtrue|, |s|, and |strue|. % % Define the table, |params|, containing the parameters to input to the Brownian % Motion Model. mu = [-.5; -.25; 0; .25; .5]; sigma = [.1; .2; .3; .2; .1]; params = table(mu,sigma) %% % Apply the function, |gbmSim|, to the rows of the table, |params|. stats = rowfun(@gbmSim,params,... 'OutputVariableNames',... {'simulatedMean' 'trueMean' 'simulatedStd' 'trueStd'}) %% % The four variable names specified by the |'OutputVariableNames'| name-value % pair argument indicate that |rowfun| should obtain four outputs from |gbmSim|. % You can specify fewer output variable names to return fewer outputs from |gbmSim|. % % Append the function output, |stats|, to the input, |params|. [params stats]