concreteFilter-class | R Documentation |
The concreteFilter
serves as a base class for all filters that
actually implement a filtering process. At the moment this includes all
filters except filterReference
, the only non-concrete
filter at present.
filterId
The identifier associated with this class.
Objects of this class should never be created directly. It serves only as a point of inheritance.
Class "filter"
, directly.
B. Ellis
parameterFilter
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