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Workflow for statistical analysis and report writing

...required. Typically this is a short file, reading in data from files, URLs and/or ODBC. Depending on the project at this point I'll either write out the workspace using save() or just keep things in memory for the next step. clean.R: This is where all the ugly stuff lives - taking care of missing v...
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How to reference generic classes and methods in xml documentation

... Not sure what you mean about that. I have never had to add those, and it has always worked for me. Do you have a specific example where it doesn't work? If so, please post it somewhere (or even provide an answer yourself.) – Lasse V. Karlsen Oct 26 '11...
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Is there a foreach in MATLAB? If so, how does it behave if the underlying data changes?

...ropriate --- you'll be able to test the loop condition at every iteration, and set the value of the loop variable(s) as you wish: n = 10; f = n; while n > 1 n = n-1; f = f*n; end disp(['n! = ' num2str(f)]) Btw, the for-each loop in Java (and possibly other languages) produces unspecifi...
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Multi-key dictionary in c#? [duplicate]

...<T1,T2>(item1, item2); } } You get immutability, .GetHashcode and .Equals for free, which (while you're waiting for C# 4.0) is nice 'n simple... One warning however: the default GetHashcode implementation (sometimes) only considers the first field so make sure to make the first field t...
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How do I sort unicode strings alphabetically in Python?

Python sorts by byte value by default, which means é comes after z and other equally funny things. What is the best way to sort alphabetically in Python? ...
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Why are variables “i” and “j” used for counters?

...ation notation traditionally uses i for the first index, j for the second, and so on. Example (from http://en.wikipedia.org/wiki/Summation): It's also used that way for collections of things, like if you have a bunch of variables x1, x2, ... xn, then an arbitrary one will be known as xi. As...
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What must I know to use GNU Screen properly? [closed]

I've just introduced a friend to GNU Screen and they're having a hard time getting used to it. That makes me think about the essential things he needs to know about the excellent Screen utility, the same things that you'd think worthwhile to teach someone, a beginner, from the ground up. What ar...
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Generating random numbers in Objective-C

I'm a Java head mainly, and I want a way to generate a pseudo-random number between 0 and 74. In Java I would use the method: ...
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Representing and solving a maze given an image

What is the best way to represent and solve a maze given an image? 10 Answers 10 ...
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How to check if a number is a power of 2

...eturn (x != 0) && ((x & (x - 1)) == 0); } Explanation First and foremost the bitwise binary & operator from MSDN definition: Binary & operators are predefined for the integral types and bool. For integral types, & computes the logical bitwise AND of its operands. F...