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Categorical Variables for Machine Learning Algorithms
March 16, 2022, 6:06 p.m. | Andrew Engel
Towards Data Science - Medium towardsdatascience.com
One-hot encoding in Python and on the data warehouse
Photo by Burst on UnsplashWhile most machine learning algorithms only work with numeric values, many important real-world features are not numeric but rather categorical. As categorical features, they take on levels or values. These can be represented as various categories such as age, state, or customer type for example. Alternatively, these can be created by binning underlying numeric features, such as identifying individuals by age ranges (e.g., 0–10, 11–18, 19–30, …
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