solution of one compartmental oral administration model only use one set of parameters, times can input can be an numeric array
oneCompartmentOralModel(parameters, time, dosingInfo)
a numeric verctor of parameters as input to the model with names
Ka: constant absorption rate
Ke: constant elimination rate
dose: initial dose
volume: volume to which the dose is administered
a numeric vector containing timePoints at which the concentration should be predicted timepoint zero is defined as the moment the dose is administered
see link{PkModel-class}
but opnly one dose at time zero allowed
vector of concentrations corresponding to the input timePoints