Create plot routine for extractor Skew.
Path: feets.extractors.ext_skew.py
Features
Extractor Documentation
Skew
The skewness of a sample is defined as follow:
$$Skewness = \frac{N}{(N-1)(N-2)}
\sum_{i=1}^N (\frac{m_i-\hat{m}}{\sigma})^3$$
Example:
For a normal distribution it should be equal to zero:
>>> fs = feets.FeatureSpace(only=['Skew'])
>>> features, values = fs.extract(**lc_normal)
>>> dict(zip(features, values))
{'Skew': -0.00023325826785278685}
References