The use of our non-parametric procedure using the maximum likelihood method
permits the effective solution of problems in
experiments.
In our view it is especially helpful when analytical form of solution
is unknown and it is a subject of research itself.
We have demonstrated that the direct reconstruction of the muonium formation rate function proves the lack of a scaling law for muon depolarization in superfluid helium with changing temperature, which results from the change of the radial distribution function W(r) in a velocity relaxation process.