Running without Tox about edm2016

[khwilson]

Here tox is used to do three things: setup virtualenvs, install requirements, and run tests. You can mimic this by creating a virtualenv yourself (virtualenv venv && source venv/bin/activate && pip install -r requirements.txt && pip install -e .) or you can use tox --develop to do a pip install -e . of this package into tox's virtualenv.

[josephtey]

Hi Kevin,
Thanks for the prompt response; I've figured my way around Tox but I am still struggling to get the IRT parameters. I've been trying to get ability, and difficulty parameters for each student and each item with the assistments test dataset (test_run_irt.py), and after a bit of digging, in online_cross_validation.py, the parameters seemed to be referenced through .param_data, as well as the prob_recall. I've printed the prob_recall and .param_data, however, they don't seem to corellate in anyway to the data provided.

Here is what I'm working with:

printed the loaded data
order_id user_idx item_idx correct time_idx
33022537 0 0 1 33022537
33022709 0 0 1 33022709
35450204 1 0 0 35450204
35450295 1 0 1 35450295
35450311 1 0 0 35450311
35450555 1 0 1 35450555
35450573 1 0 1 35450573
35480603 1 0 1 35480603
34288611 2 1 0 34288611
34288611 2 1 0 34288611

printed prob_recall (from online_cross_validation.py)
[ 0.70205542 0.43549409 0.59171247 0.4637502 0.55909128 0.62561765]

printed iter_test_node.param_data (from online_cross_validation.py)
{'thetas': array([[-0.21005269]]), 'offset_coeffs': array([[ 0.53032134], [-0.53032134]])}

I can't seem to derive a relationship between the parameters and probabilities with the above dataset. For instance, what is the ability for user 1, and the difficulty of item 0?

Thanks so much, looking forward for your response.