Re: [Haskell-beginners] containers and extensibility, typeclasses vs. multiple value constructors

Hello Greg Supposing you are working with GnuPlot - one option is to make Plot a functional type that takes a list of some polymorphic input data and generates a 'GnuPlot' - where GnuPlot is a type representing output in the GnuPlot format. type Plot a = [a] -> GnuPlot Or if GnuPlot accepts drawing styles... type Plot a = [a] -> DrawingStyle -> GnuPlot Plots are just functions, so clearly you can define as many as you like and they are all the same type. Best wishes Stephen