The function pool is generic. This is the method for the
class "fasp" of function arrays. It is used to
combine the simulation data from several arrays of simulation envelopes
and to compute a new array of envelopes based on the combined data.
Each of the arguments ... must be a function array
(object of class "fasp") containing simulation envelopes.
This is typically created by running the command
alltypes with the arguments
envelope=TRUE and savefuns=TRUE.
This ensures that each object is an array of simulation envelopes,
and that each envelope contains the simulated data
(summary function values) that were used to construct the envelope.
The simulated data are extracted from each object and combined.
A new array of envelopes is computed from the combined set of simulations.
Warnings or errors will be issued if the objects ...
appear to be incompatible. However, the code is not smart enough to
decide whether it is sensible to pool the data.