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Backup/Restore a dockerized PostgreSQL database
I'm trying to backup/restore a PostgreSQL database as is explained on the Docker website, but the data is not restored.
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Pandas percentage of total with groupby
This is obviously simple, but as a numpy newbe I'm getting stuck.
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How to printf “unsigned long” in C?
I can never understand how to print unsigned long datatype in C.
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How to read the content of a file to a string in C?
What is the simplest way (least error-prone, least lines of code, however you want to interpret it) to open a file in C and read its contents into a string (char*, char[], whatever)?
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Quickly find whether a value is present in a C array?
I have an embedded application with a time-critical ISR that needs to iterate through an array of size 256 (preferably 1024, but 256 is the minimum) and check if a value matches the arrays contents. A bool will be set to true is this is the case.
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What is the difference between the dot (.) operator and -> in C++? [duplicate]
What is the difference between the dot (.) operator and -> in C++?
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Pandas DataFrame Groupby two columns and get counts
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git clone from another directory
I am trying to clone repo from another directory.
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What's the difference between lapply and do.call?
I'm learning R recently and confused by two function: lapply and do.call . It seems that they're just similar to map function in Lisp. But why are there two functions with such a different name? Why doesn't R just use a function called map ?
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How to pass parameters correctly?
I am a C++ beginner but not a programming beginner.
I'm trying to learn C++(c++11) and it's kinda unclear for me the most important thing: passing parameters.
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