concepts.dsl.learning.function_domain_search.gen_merge_functions

gen_merge_functions(f1, arg_index=None, f2=None)

Generate merge functions. Specifically, given two functions f1 and f2, this function generates a new function. For example, given f1(x, y) and f2(z), with arg_index = 1, this function generates:

def merged(x, z):
    return f1(x, f2(z))

That is, we first apply f2 with the input arguments, and then apply f1 with the rest of the arguments and the output of f2.

A special case is when f2 is None. In this case, we generate a function that is simply a wrapper of f1.

Parameters:

• f1 (Function) – the first function.

• arg_index – the index of the argument of f1 that we want to merge with f2.

• f2 (Function | None) – the second function.

Returns:

A new function.

Return type:

Function