  Isoscaling and isobaric yield ratio parameters are compared from canonical
and grand canonical ensembles when applied to multifragmentation of finite
nuclei. Source dependence of isoscaling parameters and source and isospin
dependence of isobaric yield ratio parameters are examined in the framework of
the canonical and the grand canonical models. It is found that as the nucleus
fragments more, results from both the ensembles converge and observables
calculated from the canonical ensemble coincide more with those obtained from
the formulae derived using the grand canonical ensemble.
