www.gusucode.com > stats 源码程序 matlab案例代码 > stats/TestaParticularCoefficientExample.m
%% Test Significance of Linear Model Coefficient % Test the |Weight^2| coefficient in a linear model of mileage as a function % of the weight, weight squared, and model year. %% % Load the data and make a table, where the model year is an ordinal variable. load carsmall tbl = table(MPG,Weight); tbl.Year = ordinal(Model_Year); mdl = fitlm(tbl,'MPG ~ Year + Weight + Weight^2'); %% % Test the significance of the |Weight^2| coefficient. To do so, find the % coefficient corresponding to |Weight^2|. mdl.CoefficientNames %% % |Weight^2| is the fifth (final) coefficient. %% % Test the significance of the |Weight^2| coefficient. p = coefTest(mdl,[0 0 0 0 1])