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How to detect a Christmas Tree? [closed]
... is just a simple monochrome brightness test; any pixels with values above 220 on a 0-255 scale (where black is 0 and white is 255) are saved to a binary black-and-white image. The second threshold tries to look for red and yellow lights, which are particularly prominent in the trees in the upper l...
Regular expression to match any character being repeated more than 10 times
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edited Jun 22 '16 at 17:52
Wiktor Stribiżew
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Scala how can I count the number of occurrences in a list
I want to implement it like this: list.count(2) (returns 3).
16 Answers
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How to subtract 2 hours from user's local time?
...e JavaScript code block that will allow me to display the local time minus 2 hours?
2 Answers
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How to store standard error in a variable
...d output.
ERROR=$( { ./useless.sh | sed s/Output/Useless/ > outfile; } 2>&1 )
Note that the semi-colon is needed (in classic shells - Bourne, Korn - for sure; probably in Bash too). The '{}' does I/O redirection over the enclosed commands. As written, it would capture errors from sed ...
How to solve PHP error 'Notice: Array to string conversion in…'
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When you have many HTML inputs named C[] what you get in the POST array on the other end is an a...
How can I autoformat/indent C code in vim?
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answered Mar 1 '10 at 12:52
Amir RachumAmir Rachum
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Find row where values for column is maximal in a pandas DataFrame
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252
Use the pandas idxmax function. It's straightforward:
>>> import pandas
>>>...
How can I run PowerShell with the .NET 4 runtime?
... .NET assemblies. The script was written for assemblies built against .NET 2 (the same version of the framework that PowerShell runs with), but now needs to work with .NET 4 assemblies as well as .NET 2 assemblies.
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