The conditional parametric model is an extension of the well known linear regression model, obtained by replacing the parameters by smooth functions. Estimation in such models may be accomplished by fitting a, possibly larger, linear model locally to some explanatory variable(s). In this report the conditional parametric model is described together with a method of estimation. An S-PLUS / R imp...

This paper presents a performance evaluation of European airports, based on the application both parametric and non-parametric approaches. We have evaluated 115 busiest airports in Europe according to number passengers checked-in 2018. The four inputs we used were Terminals, Runways, Boarding gates, Aircraft stands. Three variables describe outputs, namely, Passengers, Movements, Cargo. method ...