ENH: impl random.logistic

[samir-nasibli]

Description

logistic([loc, scale, size]) Draw samples from a logistic distribution.

• disabled (incorrect check for dpnp.random.logistic functionality):
  • random/tests/test_random.py::TestRandomDist::test_logistic - AssertionError: (external)
  • random/tests/test_randomstate.py::TestRandomDist::test_logistic - AssertionError (external)

TODO

• array_like of floats for loc and scale params
• tests for backend dpnp_rng_logistic_c (in other PR, after backend/tests/test_random.cpp refactoring)

Reproduce

>>> loc = 2.56
>>> scale = 0.8
>>> np.mean(dpnp.random.logistic(loc, scale, size=10**6)); np.mean(np.random.logistic(loc, scale, size=10**6))
2.5602924600878927
2.5601147009097946
>>> np.var(dpnp.random.logistic(loc, scale, size=10**6)); np.var(np.random.logistic(loc, scale, size=10**6))
2.1036530371566946
2.1000260033560956

Checklist

• Docstrings for all functions
• Gallery example in ./doc/examples (new features only)
• Unit tests:
• Clean style in the spirit of PEP8