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Calculating moving average
I'm trying to use R to calculate the moving average over a series of values in a matrix. The normal R mailing list search hasn't been very helpful though. There doesn't seem to be a built-in function in R will allow me to calculate moving averages. Do any packages provide one? Or do I need to writ...
What requests do browsers' “F5” and “Ctrl + F5” refreshes generate?
Is there a standard for what actions F5 and Ctrl + F5 trigger in web browsers?
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Is HttpClient safe to use concurrently?
In all the examples I can find of usages of HttpClient , it is used for one off calls. But what if I have a persistent client situation, where several requests can be made concurrently? Basically, is it safe to call client.PostAsync on 2 threads at once against the same instance of HttpClient .
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What's the false operator in C# good for?
There are two weird operators in C#:
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What is the explicit promise construction antipattern and how do I avoid it?
I was writing code that does something that looks like:
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Is it possible to cast a Stream in Java 8?
Is it possible to cast a stream in Java 8? Say I have a list of objects, I can do something like this to filter out all the additional objects:
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What does rake db:test:prepare actually do?
I am following the rails tutorial videos and I can't figure out what the db:test:prepare command actually does. Can someone provide an explanation?
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Group by with multiple columns using lambda
How can I group by with multiple columns using lambda?
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How to convert timestamp to datetime in MySQL?
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Persistent :set syntax for a given filetype?
I'm working on a Symfony2 project which uses Twig, and the filetypes are myfile.html.twig . Vim doesn't automatically detect the syntax highlighting and so applies none. I can use :set syntax=HTML after I've opened the file but this is a pain when jumping between files.
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