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%% Display Coefficient of Determination % This example shows how to display R-squared (coefficient of determination) % and adjusted R-squared. Load the sample data and define the response % and independent variables. % Copyright 2015 The MathWorks, Inc. load hospital y = hospital.BloodPressure(:,1); X = double(hospital(:,2:5)); %% % Fit a linear regression model. mdl = fitlm(X,y) %% % The R-squared and adjusted R-squared values are 0.508 and 0.487, respectively. % Model explains about 50% of the variability in the response variable. %% % Access the R-squared and adjusted R-squared values using the property % of the fitted |LinearModel| object. mdl.Rsquared.Ordinary %% mdl.Rsquared.Adjusted %% % The adjusted R-squared value is smaller than the ordinary R-squared value.