Calculates weights of base funds (assets) in portfolio(s). Supports graphs when base fund is included in root fund through complex path. Detects loops in data to prevent infinite loops or incorrect calculations.

Expects CSV file on input with the following format:

A,B,1000
A,C,2000
B,D,500
B,E,250
B,F,250
C,G,1000
C,H,1000

Each line like A,B,1000 means value of fund B in fund A is 1000. Optional 4th column can be used to include end market values of funds. Example:

A,B,1000,1009
A,C,2000,1994
B,D,500,505
B,E,250,253
B,F,250,251
C,G,1000,994
C,H,1000,1000

Returns csv data representing weights of each base fund in each root fund found. If end market values are provided, 4th column will contain weighted returns. Example of program return:

A,D,0.167,2.222
A,E,0.083,1.333
A,F,0.083,0.444
A,G,0.333,-3.000
A,H,0.333,0.000 

weight_calculator.py [-h] [-v] data_file

positional arguments:
  data_file            A .csv file containing fund data to act on.

optional arguments:
  -h, --help           show this help message and exit
  -v, --verbose        increase log verbosity