GitHub

pandas concat does not match index names when concatenating two dataframes with a multiindex

df_top=pd.DataFrame([["i1_top","i2_top",1,2]], columns=["index1","index2","value1","value2"]) df_top.set_index(["index1","index2"],inplace=True) df_bottom=pd ...
GitHub

Test doctests in pandas/core/reshape/concat.py

Failed example: pd.concat([df5, df6], verify_integrity=True) Expected: Traceback (most recent call last): ... ValueError: Indexes have overlapping values: ['a'] Got ...
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How to Use the Concat Function in Pandas for Horizontal or Vertical Table Concatenation

Hello there! 👋 I'm Luca, a BI Developer with a passion for all things data, Proficient in Python, SQL and Power BI ...
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5 powerful pandas techniques every Python user should know

pandas is the premier library for data analysis in Python. Here are some advanced things I like to do with pandas DataFrames to take my analysis to the next level. Change the index of a DataFrame On a ...