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Find the max of two or more columns with pandas
I have a dataframe with columns A , B . I need to create a column C such that for every record / row:
2 Answers
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How to exit a function in bash
How would you exit out of a function if a condition is true without killing the whole script, just return back to before you called the function.
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How to redirect to a 404 in Rails?
I'd like to 'fake' a 404 page in Rails. In PHP, I would just send a header with the error code as such:
11 Answers
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Formatting NSDate into particular styles for both year, month, day, and hour, minute, seconds
I basically need to get current date and time separately, formatted as:
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How to convert timestamps to dates in Bash?
I need a shell command or script that converts a Unix timestamp to a date. The input can come either from the first parameter or from stdin, allowing for the following usage patterns:
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How can foreign key constraints be temporarily disabled using T-SQL?
Are disabling and enabling foreign key constraints supported in SQL Server? Or is my only option to drop and then re-create the constraints?
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Analyze audio using Fast Fourier Transform
I am trying to create a graphical spectrum analyzer in python.
4 Answers
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How to copy a file from one directory to another using PHP?
Say I've got a file test.php in foo directory as well as bar . How can I replace bar/test.php with foo/test.php using PHP ? I'm on Windows XP, a cross platform solution would be great but windows preferred.
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Reverse a string in Java
I have "Hello World" kept in a String variable named hi .
45 Answers
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Ball to Ball Collision - Detection and Handling
With the help of the Stack Overflow community I've written a pretty basic-but fun physics simulator.
14 Answers
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