add sparsity score to tuning curves

[pas-calc]

see #538

[gviejo]

Guidelines for contributing is shown here : https://github.com/pynapple-org/pynapple/blob/main/CONTRIBUTING.md
You can write the tests in tests/test_tuning_curves.py.
Thanks

[wulfdewolf]

I like the idea of this!
The sparsity score is indeed nice to have, and easily computed from the tuning curves.
The function you wrote seems good.

For us to merge this though we will need:

• comprehensive testing
• docstring examples

As we have for the mutual information function.

The fasted way will be if you write these!
I can also do it, but have other priorities for the moment, so that route will take longer.

[pas-calc]

I like the idea of this! The sparsity score is indeed nice to have, and easily computed from the tuning curves. The function you wrote seems good.

For us to merge this though we will need:

* comprehensive testing

* docstring examples

As we have for the mutual information function.

The fasted way will be if you write these! I can also do it, but have other priorities for the moment, so that route will take longer.

Yes I will have a go on that

[gviejo]

Hello you can lint the project with black pynapple after installing the right version pip install black==26.1.0.