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How to count TRUE values in a logical vector
In R, what is the most efficient/idiomatic way to count the number of TRUE values in a logical vector? I can think of two ways:
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The modulo operation on negative numbers in Python
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How do I convert a dictionary to a JSON String in C#?
I want to convert my Dictionary<int,List<int>> to JSON string. Does anyone know how to achieve this in C#?
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Process.start: how to get the output?
I would like to run an external command line program from my Mono/.NET app.
For example, I would like to run mencoder . Is it possible:
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Will #if RELEASE work like #if DEBUG does in C#?
In all the examples I've seen of the #if compiler directive, they use "DEBUG". Can I use "RELEASE" in the same way to exclude code that I don't want to run when compiled in debug mode? The code I want to surround with this block sends out a bunch of emails, and I don't want to accidentally send tho...
What is the id( ) function used for?
I read the Python 2 docs and noticed the id() function:
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Clang vs GCC for my Linux Development project
I'm in college, and for a project we're using C. We've explored GCC and Clang, and Clang appears to be much more user friendly than GCC. As a result, I'm wondering what the advantages or disadvantages are to using clang, as opposed to GCC, for developing in C and C++ on Linux?
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Case-insensitive string comparison in C++ [closed]
What is the best way of doing case-insensitive string comparison in C++ without transforming a string to all uppercase or all lowercase?
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Java Pass Method as Parameter
I am looking for a way to pass a method by reference. I understand that Java does not pass methods as parameters, however, I would like to get an alternative.
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Determine if an element has a CSS class with jQuery
...ooking to see if there is an easy way to determine if the element has a specific CSS class associated with it.
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