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    %% View Trained Regression Tree
% View textual and graphical displays of a trained regression tree.
%%
% Load the |carsmall| data set.  Consider a model that explains a car's
% fuel economy (|MPG|) using its weight (|Weight|) and number of cylinders
% (|Cylinders|). 
load carsmall
X = [Weight Cylinders];
Y = MPG;
%%
% Train a regression tree using all measurements.
Mdl = fitrtree(X,Y);
%%
% View textual display of the trained regression tree.
view(Mdl)
%%
% View graphical display of the trained regression tree.
view(Mdl,'Mode','graph');