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rasbt / python-machine-learning-book-3rd-edition

The "Python Machine Learning (3rd edition)" book code repository
https://www.amazon.com/Python-Machine-Learning-scikit-learn-TensorFlow/dp/1789955750/
MIT License
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Possible Typo in page 44 #128

Closed mzakariaCERN closed 4 years ago

mzakariaCERN commented 4 years ago

however, it does not make the original data set normally distributed

standardization does make the data set normally distributed.

rasbt commented 4 years ago

no that's not true. The dataset will have the parameters of a standard normal distribution after standardization, i.e., zero mean and unit variance. But standardization cannot transform the data into a normal distribution. For that you'd need some power transformation like box-cox transformation.