add cpm.py

[dynaryu]

1. create BNS_JT folder for python module
2. create cpm.py
3. create BNS_JT/tests/test_cpm.py

[jieunbyun]

class "variable" needs to be defined. In Matlab version, a variable is defined by "B" and "value". But to be more user friendly, "B" may be replaced by a dictionary something like "numBasicState = 3" and "compositeState = {'4':['1','2'], '5':['1','3'], '6': ['1','2','3']}" (A user does not have to enter composite states for all possible permutations but is enough define those being used). Then, the code may create a "B" matrix accordingly if it makes computation more efficient.

But this is just my suggestion, and I will leave the final decision to you. Also, please feel free to modify variable names.

[jieunbyun]

Oh and for the current Matlab version, "isCompatible" function is somehow misplaced.. It'd be great if it could be placed correctly in the upcoming python version.

[jieunbyun]

As a test example, we can use this one:

[dynaryu]

• [x] add variable class
• [ ] need test for iscompatible; compatible takes C, variables, checkVars, checkStates, vInfo. Can you make some examples?
• [ ] same kinds of tests are needed for the operations of sum, product
• [ ] once I implement the basic operations, then I can add the simple bridge example.

[dynaryu]

Oh and for the current Matlab version, "isCompatible" function is somehow misplaced.. It'd be great if it could be placed correctly in the upcoming python version.

I put it under cpm.py where Cpm class is defined.

[dynaryu]

But to be more user friendly, "B" may be replaced by a dictionary something like "numBasicState = 3" and "compositeState = {'4':['1','2'], '5':['1','3'], '6': ['1','2','3']}" (A user does not have to enter composite states for all possible permutations but is enough define those being used).

For the time being, I will try to convert the matlab to Python as it is. Once basic implementation is done, then we can think about how to improve usability further.

[dynaryu]

As a test example, we can use this one:

Given the test example, can you provide input and output for testing? For instance, isCompatible product sum etc...

[jieunbyun]

Oh by the way, there is a typo in the example. P(X2|H) has p=[0.95 0.05 0.85 0.15]' -- The second element needs be changed from 0.15 to 0.05.