"fv")
are compatible.compatible.fv(A, B)"fv").TRUE if the objects are compatible, and FALSE
if they are not."fv" is essentially a data frame
containing several different statistical estimates of the same
function. Such objects are returned by Kest and its
relatives. This function tests whether two such objects are compatible
(so that, for example, they could be added or subtracted).
The functions are compatible if they have been evaluated at the
same sequence of values of the argument r, and if the
statistical estimates have the same names.