\item{obs}{[numeric (atomic or list)] series of observed variable (typically discharge [mm/time step])}
\item{varObs}{(optional) [character (atomic or list)] names of the observed variable (\code{"Qobs"} by default])}
\item{varObs}{(optional) [character (atomic or list)] names of the observed variable (\code{"Q"} by default, or one of \code{"SCA"}, \code{"SWE"}, \code{"SD"}])}
\item{BoolCrit}{(optional) [boolean (atomic or list)] boolean (the same length as \code{obs}) giving the time steps to consider in the computation (all time steps are considered by default)}
\emph{$obs } \tab [numeric] series of observed variable (typically discharges [mm/time step]) \cr
\emph{$varObs } \tab [character] names of the observed variable (\code{"Qobs"} by default]) \cr
\emph{$varObs } \tab [character] names of the observed variable (\code{"Q"} by default]) \cr
\emph{$BoolCrit } \tab [boolean] boolean giving the time steps considered in the computation \cr
\emph{$transfo } \tab [character] name of the transformation (e.g. \code{""}, \code{"sqrt"}, \code{"log"}, \code{"inv"}, \code{"sort"}) \cr
\emph{$epsilon } \tab [numeric] small value to add to all Qobs and Qsim (useful when \code{"log"} or \code{"inv"} transformations are used) [same unit as \code{obs}] \cr