大约有 16,300 项符合查询结果(耗时:0.0248秒) [XML]

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Get the Row(s) which have the max count in groups using groupby

How do I find all rows in a pandas dataframe which have the max value for count column, after grouping by ['Sp','Mt'] columns? ...
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adding noise to a signal in python

I want to add some random noise to some 100 bin signal that I am simulating in Python - to make it more realistic. 7 Answer...
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Creating .pem file for APNS?

How do I create a .pem file to be stored in the hosting server for APN payload data? 11 Answers ...
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Difference between clustered and nonclustered index [duplicate]

I need to add proper index to my tables and need some help. 6 Answers 6 ...
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Algorithm to return all combinations of k elements from n

I want to write a function that takes an array of letters as an argument and a number of those letters to select. 71 Answe...
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How to dump a table to console?

I'm having trouble displaying the contents of a table which contains nested tables (n-deep). I'd like to just dump it to std out or the console via a print statement or something quick and dirty but I can't figure out how. I'm looking for the rough equivalent that I'd get when printing an NSDicti...
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Parallel.ForEach vs Task.Run and Task.WhenAll

What are the differences between using Parallel.ForEach or Task.Run() to start a set of tasks asynchronously? 4 Answers ...
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Changing default shell in Linux [closed]

How is it possible to change the default shell? The env command currently says: 3 Answers ...
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Delete specific line number(s) from a text file using sed?

I want to delete one or more specific line numbers from a file. How would I do this using sed? 6 Answers ...
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How does one escape backslashes and forward slashes in VIM find/search?

For instance, if I wanted to a find and replace with strings containing backward or forward slashes, how would this be accomplished in vim? Thank you! ...