(Python) Inconsistency in _randomized_dpca docstring and transform/inverse_transform

[cboulay]

The doctstring for _randomized_dpca says that it returns P, encoding matrices used to transform data, and D, decoding matrices used to inverse transform data.

However, the actual implementation of transform(X) uses D and the implementation of inverse_transform uses P.

[cboulay]

The matlab code to get P and D is similar to the Python code and, eventually (D --> decoder --> W; P --> encoder --> V), D is used for decoding and P is used for encoding, just as in the Python code. Therefore, I'm pretty sure that it's just a mistake in the docstring, but this would be a major problem if it was the code that was mistaken so I'd like confirmation either way.

Thank you,
-Chad

[wielandbrendel]

I can confirm it's just the wrong docstring.