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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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How does zip(*[iter(s)]*n) work in Python?
How does zip(*[iter(s)]*n) work? What would it look like if it was written with more verbose code?
6 Answers
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Find out if string ends with another string in C++
How can I find out if a string ends with another string in C++?
20 Answers
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Can't use modulus on doubles?
I have a program in C++ (compiled using g++). I'm trying to apply two doubles as operands to the modulus function, but I get the following error:
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How to calculate date difference in JavaScript?
I want to calculate date difference in days, hours, minutes, seconds, milliseconds, nanoseconds. How can I do it?
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Transform DateTime into simple Date in Ruby on Rails
I have a datetime column in db that I want to transform into a simple date when I show it to users.
6 Answers
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How do I flush the PRINT buffer in TSQL?
I have a very long-running stored procedure in SQL Server 2005 that I'm trying to debug, and I'm using the 'print' command to do it. The problem is, I'm only getting the messages back from SQL Server at the very end of my sproc - I'd like to be able to flush the message buffer and see these messages...
Using boolean values in C
C doesn't have any built-in boolean types. What's the best way to use them in C?
18 Answers
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Evaluating a mathematical expression in a string
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