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Pandas convert dataframe to array of tuples
I have manipulated some data using pandas and now I want to carry out a batch save back to the database. This requires me to convert the dataframe into an array of tuples, with each tuple corresponding to a "row" of the dataframe.
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What is the difference between JOIN and JOIN FETCH when using JPA and Hibernate
Please help me understand where to use a regular JOIN and where a JOIN FETCH.
5 Answers
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Simple way to create matrix of random numbers
I am trying to create a matrix of random numbers, but my solution is too long and looks ugly
13 Answers
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How can I repeat a character in Bash?
How could I do this with echo ?
32 Answers
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Why does C++ rand() seem to generate only numbers of the same order of magnitude?
In a small application written in C/C++, I am facing a problem with the rand function and maybe the seed :
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Repeating characters in VIM insert mode
Is there a way of repeating a character while in Vim's insert mode? For example, say I would like to insert 80 dashes, in something like emacs I would type:
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“PKIX path building failed” and “unable to find valid certification path to requested target”
I'm trying to get tweets using twitter4j library for my java project. On my first run I got an error about certificate sun.security.validator.ValidatorException and sun.security.provider.certpath.SunCertPathBuilderException . Then I added twitter certificate by:
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What do *args and **kwargs mean? [duplicate]
What exactly do *args and **kwargs mean?
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How to use R's ellipsis feature when writing your own function?
The R language has a nifty feature for defining functions that can take a variable number of arguments. For example, the function data.frame takes any number of arguments, and each argument becomes the data for a column in the resulting data table. Example usage:
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The shortest possible output from git log containing author and date
How can I show a git log output with (at least) this information:
13 Answers
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