poisson ratio problem

I'm not sure how to determine the property for material.
After I read the message:
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class yade.wrapper.ElastMat(inherits Material → Serializable)
Purely elastic material. The material parameters may have different meanings depending on the
IPhysFunctor used : true Young and Poisson in Ip2_FrictMat_FrictMat_MindlinPhys, or contact
stiffnesses in Ip2_FrictMat_FrictMat_FrictPhys.
poisson(=.25)
Poisson’s ratio or the ratio between shear and normal stiffness [-]. It has different meanings
depending on the Ip functor.
young(=1e9)
elastic modulus [Pa]. It has different meanings depending on the Ip functor.
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Is Ip2_FrictMat_FrictMat_MindlinPhys use E,v as normal Poisson's ration and elastic modulus as in pfc3D? And Ip2_FrictMat_FrictMat_FrictPhys use E,v as kn/ks and E for what?
Thanks