Multiple Variables Cdf Estimator

A | a type that is a model of cdf estimator | |

a | an object of type A | |

f | an object of a type that models CDF | |

u | an object of a type that models a Location | |

first,last | two models of Input Iterator (see STL) iterating on a range of models of Neighborhood |

**Estimate cdf**`a(u,first,last,f)`Return type: int Semantics: estimates the ``parameters'' of cdf `f`(mean and variance in the case of a Gaussian cdf, or the probabilities*Prob*(*Z**z*_{i}) =*F*(*z*_{i}),*i*= 1,...,*n*, if*F*is non-parametric). The returned value is 0 if no problem was encountered during the execution of the function. If the returned value is different from 0 (i.e. the estimation of`f`failed), ccdf`f`has not been modified by the function call

`gaussian_cdf_coKestimator`: estimator of a gaussian cdf using cokriging (coK)