Regression and self-regression models with type-(·, c) fuzzy data

This paper induces, type-(·,c) fuzzy data into regression and self-regression models, builds more extensive models with type-(.,c) fuzzy data than a classical one in application and develops a way to model determination under a cone index J. Meanwhile it proves the relation between the models and the other models with T-fuzzy data, flat (or trapezoidal) fuzzy data so that the former is applied to the model with flat fuzzy data. And finally it presents methods to type-(·, c) fuzzy data.