# The Nerv Parameter Package Part of the [Nerv](../README.md) toolkit. ## Description ### Class hierarchy There is a base class __Nerv.Param__ defined in `layer/init.lua`. ### Class hierarchy and their members * __nerv.MatrixParam__ inherits __nerv.Param__ * `Matrix trans` stores the parameter matrix. * __nerv.LinearTransParam__ inherits __Nerv.MatrixParam__. * __Nerv.BiasParam__ inherits __Nerv.MatrixParam__. ## Methods * __void Param.\_\_init(Param self, string id, table global_conf)__ Constructor of a __Param__, it will set `self.id` to be `id` and `self.gconf` to be `global_conf`. * __void Param.set_info(Param self, table info)__ Set `self.info` to be `info`. * __table Param.get_info(Param self)__ Returns `self.info`. * __void Param.read(Param self, ChunkData pcdata)__ Abstract method. In this method, `self` should in turn calls its members to load from `pcdata`. * __void Param.write(Param self, ChunkFileHandle pfhandle)__ Abstract method. Save parameters to file. In this method, `self` should in turn calls its members to save to `pfhandle`.