Testing the proportional hazards regression model against some general alternatives.
A class of goodness of fit tests for the proportional hazards regression model is proposed. The alternatives considered permit the parameters of the model to vary as step functions with time. Restricting the type of step function allowed gives rise to tests against more specific alternatives. Computational details are given.
D008962:Models, Theoretical; D012044:Regression Analysis; D013223:Statistics as Topic