RB Analysis generated data not consistent

[newsma]

When I tried running "RBAnalysis.ipynb" with "runsims = True", the new RB data that was generated has success counts = 0 for all RB lengths for every iteration. Any ideas why this would be the case? I've attached the "..txt" file for reference.

MySimulatedDRBData.txt

[kmrudin]

Thanks for bringing this to our attention! I've reproduced this bug (on the latest version of master). We are looking into this and will get back to you as soon as we have an answer. Our apologies for the inconvenience!

[kmrudin]

The problem was in line 302 of packages/pygsti/extras/rb/simulate.py. idealout is a tuple of ints, not a string; I've fixed this in the develop branch. Will try to push this to master ASAP, but in the meantime, the other option is to replace the line referenced above:

scounts.append(outcome.get(idealout,0))

with

scounts.append(outcome.get(''.join(str(idealbit) for idealbit in idealout),0))

[newsma]

Thank you for your prompt attention. I cloned the develop brunch and made sure the above-mentioned correction is there (which it is) but I still have the same situation, success counts =0 for all RB lengths for every iteration.

[kmrudin]

You're very welcome; sorry this hasn't solved the problem yet! When I run the RB notebook now I do get non-zero success counts. Did you restart the Python kernel in the Jupyter notebook (or just start a new Jupyter session) after switching to the develop branch?

[newsma]

I indeed started a new kernel but this doesn't seem to fix the issue.

[kmrudin]

Hmm... okay, interesting! Can you tell me what path is returned when you just type in pygsti in that Jupyter notebook? (I'm wondering if you might have multiple installs of pyGSTi and the wrong one (maybe one installed via pip?) is being accessed.)

[newsma]

I think you're right. The path is :

<module 'pygsti' from '/Users/swarnadeepmajumder/miniconda3/lib/python3.7/site-packages/pygsti/init.py'>

Is there an easy way to fix this?

[kmrudin]

Ah, excellent!

Try the following commands in a terminal session:

cd pyGSTi
pip install -e .[complete]

[newsma]

It works now. Thank you so much for your help. Have a great day!

[kmrudin]

Fantastic; glad to be able to help!