one-hot encoding
Each category to generate a Boolean columns, which may be only a value of 1. The sample which is also known as one-hot encoding.
The table on the left in the figure on the right is converted into the form expressed using:
- Put into the category of numerical values may be used
- Join nonlinear
Converting the distance information obtained good - an equal distance
- pandas.get_dummies(data, prefix=None)
- data：array-like, Series, or DataFrame
- prefix: group name
