Since several data-transformations are mass-dependent, it is interesting to have a subclass/decorator that transforms the input for the multimodel to frequency for each individual submodel. In this way, the mass dependence of the transformation can be tuned for each submodel. At the cost of just one extra multiplication per step, this should not impose a severe computational cost.
Added the transform class for the HFSModel, implements both a pre and post transform. Will have to think to make this dynamically cover other classes as well.
Since several data-transformations are mass-dependent, it is interesting to have a subclass/decorator that transforms the input for the multimodel to frequency for each individual submodel. In this way, the mass dependence of the transformation can be tuned for each submodel. At the cost of just one extra multiplication per step, this should not impose a severe computational cost.