Pandas dataframe 找到平均值

Question

I have a dataframe that looks like the attached image. I want to find the mean for every finalAward_band 'value'. I'm not sure how to do this.

Answer 1

str.contains can be used to perform either substring searches or regex based search. The search defaults to regex-based unless you explicitly disable it.

Sometimes regex search is not required, so specify regex=False to disable it.

#select all rows containing "finalAward_band"
df1[df1['col'].str.contains('finalAward_band', regex=False)]
# same as df1[df1['col'].str.contains('finalAward_band')] but faster.