Filters

All of the following classes are subclsses of FilterTemplate:

• Coefficients

• FIR

• PolesZeros

• ResponseList

• Polynomial

• ADCONVERSION

• ANALOG

• DIGITAL

They are NOT subclasses of Filter, which exists only to return one of the FilterTemplate subclasses. I therefore use Filter.construct() rather than Filter()

Filter.construct figures out which filter subclass to create, creates it and returns it.

The different filter types can be created using Filter.construct(), a “Factory” method which returns an object of one of the Filter subclasses