映射技巧
将'income_raw'编码成数字值
income_mapping = {'<=50K': 0,'>50K': 1}
income = income_raw.map(income_mapping)
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将'income_raw'编码成数字值
income_mapping = {'<=50K': 0,'>50K': 1}
income = income_raw.map(income_mapping)
相关文章：