Single Variable Cdf Estimator

a | an object of a type that models Cdf Estimator | |

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

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

V | an object of a type that models a Neighborhood |

**Estimate cdf**`a(u,V,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_Kestimator`: estimator of a gaussian cdf using kriging (K)`indicator_cdf_Kestimator`: estimator of a non-parametric cdf using indicator kriging`search_tree_estimator`: estimator of a non-parametric cdf using a search tree (SNESIM)