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Get statistics for each group (such as count, mean, etc) using pandas GroupBy?
I have a data frame df and I use several columns from it to groupby :
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What is the use of the %n format specifier in C?
What is the use of the %n format specifier in C? Could anyone explain with an example?
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Escaping ampersand in URL
I am trying to send a GET message that contains strings with ampersands and can't figure how to escape the ampersand in the URL.
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Is there a CSS selector for elements containing certain text?
I am looking for a CSS selector for the following table:
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In Ruby on Rails, how do I format a date with the “th” suffix, as in, “Sun Oct 5th”?
I want to display dates in the format: short day of week, short month, day of month without leading zero but including "th", "st", "nd", or "rd" suffix.
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Difference between setTimeout with and without quotes and parentheses
I am learning JavaScript and I have learned recently about JavaScript timing events. When I learned about setTimeout at W3Schools , I noticed a strange figure which I didn’t run into before. They are using double quotes and then call the function.
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How to put more than 1000 values into an Oracle IN clause [duplicate]
Is there any way to get around the Oracle 10g limitation of 1000 items in a static IN clause? I have a comma delimited list of many of IDs that I want to use in an IN clause, Sometimes this list can exceed 1000 items, at which point Oracle throws an error. The query is similar to this...
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How to organize large R programs?
When I undertake an R project of any complexity, my scripts quickly get long and confusing.
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What does “DAMP not DRY” mean when talking about unit tests?
I heard someone say that unit tests (e.g. nUnit, jUnit, xUnit) should be
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What does !! mean in ruby?
Just wondering what !! is in Ruby.
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