Source code for inferpy.models.replicate

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"""Module with the replication functionality.
"""

from functools import reduce

[docs]class replicate(): """Class implementing the Plateau notation The plateau notation is used to replicate the random variables contained within this construct. Every replicated variable is conditionally idependent given the previous random variables (if any) defined outside the with statement. The ``with inf.replicate(size = N)`` sintaxis is used to replicate N times the contained definitions. For example: .. literalinclude:: ../../examples/replicate_nested.py The number of times that indicated with input argument ``size``. Note that nested replicate constructs can be defined as well. At any moment, the product of all the nested replicate constructs can be obtained by invoking the static method ``get_total_size()``. .. note:: Defining a variable inside the construct replicate with size equal to 1, that is, ``inf.replicate(size=1)`` is equivalent to defining outside any replicate construct. """ __active_rep = [] __all_rep = []
[docs] def __init__(self,size): """Initializes the replicate construct Args: size (int): number of times that the variables contained are replicated. """ self.size = size self.varlist=[]
@staticmethod def __get_all_sizes(): return [1]+[r.size for r in replicate.__active_rep] def __enter__(self): replicate.__active_rep.append(self) replicate.__all_rep.append(self) return self def __exit__(self, exc_type, exc_val, exc_tb): replicate.__active_rep.pop()
[docs] @staticmethod def get_total_size(): """Static method that returns the product of the sizes of all the nested replicate constructs Returns: Integer with the product of sizes """ if len(replicate.__get_all_sizes()) == 1: return 1 return reduce(lambda x, y: x * y, replicate.__get_all_sizes())
[docs] @staticmethod def print_total_size(): """Static that prints the total size """ print("total size: " + str(replicate.get_total_size()))
[docs] @staticmethod def in_replicate(): """Check if a replicate construct has been initialized Returns: True if the method is inside a construct replicate (of size different to 1). Otherwise False is return """ return len(replicate.__active_rep)>0
# static methods
[docs] @staticmethod def get_active_replicate(): """ Return the active replicate defined with the construct 'with' """ if replicate.in_replicate(): return replicate.__active_rep return []
[docs] @staticmethod def get_all_replicate(): return replicate.__all_rep