在 python pandas 中使用 groupby 的列中出现的百分比

Question

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Suppose I have multiple entries in a column search term, I want to calculate the percentage of occurrence of the brand. I know how to get the count of each brand but can someone suggest a way to get these in percentage?

df = df.groupby(["searchterm","brand"]).size().reset_index(name='count')

Answer 1

You should be able to use

df.groupby('searchterm')['brand'].value_counts(normalize=True)