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Grouping functions (tapply, by, aggregate) and the *apply family

...ed by the extremely popular plyr package, the base functions remain useful and worth knowing. This answer is intended to act as a sort of signpost for new useRs to help direct them to the correct *apply function for their particular problem. Note, this is not intended to simply regurgitate or repla...
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What is the difference between “long”, “long long”, “long int”, and “long long int” in C++?

I am transitioning from Java to C++ and have some questions about the long data type. In Java, to hold an integer greater than 2 32 , you would simply write long x; . However, in C++, it seems that long is both a data type and a modifier. ...
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What is The Rule of Three?

...antics. This means that objects are implicitly copied in various contexts, and we should understand what "copying an object" actually means. Let us consider a simple example: class person { std::string name; int age; public: person(const std::string& name, int age) : name(name), ag...
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Is there an API to get bank transaction and bank balance? [closed]

I'm using CHASE bank. (Also Bank of America) and I want to get my bank transactions and my balance if I can. Is there an API for that? in PHP or JAVA? If so, please let me know how to get them. ...
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Xcode 6 Storyboard the wrong size?

Built a new project from scratch in Swift in Xcode 6 (Beta 1) and have seen some strange behaviour with Storyboards and the output that I am viewing. ...
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Convert Existing Eclipse Project to Maven Project

...ilds. Right now the procedure is far more complicated than it ought to be, and we're hoping that Maven will simplify things to a one-click build. ...
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When do you use the Bridge Pattern? How is it different from Adapter pattern?

...ttern Wikipedia entry). The Bridge pattern is a composite of the Template and Strategy patterns. It is a common view some aspects of the Adapter pattern in the Bridge pattern. However, to quote from this article: At first sight, the Bridge pattern looks a lot like the Adapter pattern in that ...
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Haskell function composition (.) and function application ($) idioms: correct use

I have been reading Real World Haskell , and I am nearing the end, but a matter of style has been niggling at me to do with the (.) and ($) operators. ...
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Rename package in Android Studio

How do you rename packages in the new IDE Android Studio, based on IntelliJ IDEA? 52 Answers ...
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Architecture of a single-page JavaScript web application?

...application in terms of its model objects, UI components, any controllers, and objects handling server persistence. 14 Answ...