CODEWITHSUNDEEP
pythonmatlabscipy
Wollmich
Wollmich

Reputation: 1646

Call SciPy from MATLAB using Python

I would like to compute the inverse CDF of Student T distribution using MATLAB without the statistic toolbox but with the help of Python and SciPy, see as well https://stackoverflow.com/a/20627638/7556646.

The following code running from MATLAB R2023a using Python 3.9.13

py.scipy.stats.t().ppf(0.975, df=4)

gives me the following error:

Error using _distn_infrastructure>__init__
Python Error: TypeError: _parse_args() missing 1 required positional argument: 'df'

Error in _distn_infrastructure>freeze (line 824)

Error in _distn_infrastructure>__call__ (line 829)

The argument df is provided but not recognized. I don't understand why? See as well https://ch.mathworks.com/help/matlab/matlab_external/python-function-arguments.html

For a normal distribution I can use SciPy from MATLAB:

py.scipy.stats.norm().ppf(0.975)

returns 1.9600 as expected.

In Python I can do it:

>>> scipy.stats.t.ppf(0.975, df=4)
2.7764451051977987

Upvotes: 0

Views: 183

Answers (1)

Wollmich
Wollmich

Reputation: 1646

The following code will work:

>> py.scipy.stats.t(df=4).ppf(0.975)

ans =

    2.7764

Upvotes: 0

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