abstraction
instantiates an object from class of abstraction
# S3 method for default
abstraction(rainfall,
abstractionParams=list(canopyAbstraction=NULL,
surfaceAbstraction=NULL))
a vector : a time series of precipitation hyetograph (mm)
a list: including parameters of simple surface and simple canopy methods.
canopyAbstraction
depth of canopy abstraction in (mm). default to zero
surfaceAbstraction
depth of surface abstraction in (mm). default to zero
a list: an object from class of abstraction