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Rename specific column(s) in pandas

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Why is early return slower than else?

...than with_else(): >>> T(lambda : without_else()).repeat() [0.42015745017874906, 0.3188967452567226, 0.31984281521812363] >>> T(lambda : with_else()).repeat() [0.36009842032996175, 0.28962249392031936, 0.2927151355828528] >>> T(lambda : without_else(True)).repeat() [0.3170...
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How to access pandas groupby dataframe by key

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How to read a .xlsx file using the pandas Library in iPython?

... 165 I usually create a dictionary containing a DataFrame for every sheet: xl_file = pd.ExcelFile(fi...
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How can I make pandas dataframe column headers all lowercase?

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Changing font size and direction of axes text in ggplot2

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Why do indexes in XPath start with 1 and not 0?

... answered Oct 9 '15 at 16:15 mike mckechniemike mckechnie 67677 silver badges1212 bronze badges ...
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Path to Powershell.exe (v 2.0)

... 175 I believe it's in C:\Windows\System32\WindowsPowershell\v1.0\. In order to confuse the innocent,...
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How to define different dependencies for different product flavors

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What does value & 0xff do in Java?

...is a long. But not on byte. See the Java Language Specification, sections 15.22.1 and 5.6.2. share | improve this answer | follow | ...