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Remove rows with duplicate indices (Pandas DataFrame and TimeSeries)
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I would suggest using the duplicated method on the Pandas Index itself:
df3 = df3[~df3.index.duplicated(keep='first')]
While all the other methods work, the currently accepted answer is by far the least performant for the provided example. Furthermore, while the groupby method is only slightly les...
How to delete migration files in Rails 3
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Chris Frederick
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answered Oct 6 '10 at 16:56
Fábio BatistaFábio B...
How to expand/collapse a diff sections in Vimdiff?
...e expand/collapse a diff section, have full file expansion/only diffs with 3 context lines above or below, etc.). I currently know only the following commands :
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Check if a JavaScript string is a URL
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Check if value exists in Postgres array
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Simpler with the ANY construct:
SELECT value_variable = ANY ('{1,2,3}'::int[])
The right op...
Can anybody push to my project on github?
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Difference between dispatch_async and dispatch_sync on serial queue?
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3 Answers
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“Ago” date/time functions in Ruby/Rails
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3 Answers
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UnicodeDecodeError: 'ascii' codec can't decode byte 0xe2 in position 13: ordinal not in range(128)
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The file is being read as a bunch of strs, but it should be unicodes. Python tries to implicitl...
Is it possible to use JS to open an HTML select to show its option list? [duplicate]
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edited Jul 10 '18 at 10:31
answered Jan 10 '09 at 0:20
Ga...