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Randomize a List

What is the best way to randomize the order of a generic list in C#? I've got a finite set of 75 numbers in a list I would like to assign a random order to, in order to draw them for a lottery type application. ...
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How to declare a global variable in php?

... The $GLOBALS array can be used instead: $GLOBALS['a'] = 'localhost'; function body(){ echo $GLOBALS['a']; } From the Manual: An associative array containing references to all variables which are currently defined in the ...
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How do I use the CONCAT function in SQL Server 2008 R2?

...AT function in SQL Server 2008 R2. I found the link for this function . But when I use this function, it gives the following error: ...
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How can I make pandas dataframe column headers all lowercase?

...data.columns] example: >>> data = pd.DataFrame({'A':range(3), 'B':range(3,0,-1), 'C':list('abc')}) >>> data A B C 0 0 3 a 1 1 2 b 2 2 1 c >>> data.columns = map(str.lower, data.columns) >>> data a b c 0 0 3 a 1 1 2 b 2 2 1 c ...
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Format output string, right alignment

... Michael Mior 25.3k88 gold badges7676 silver badges108108 bronze badges answered Nov 22 '11 at 22:06 Mark ByersMark Byers ...
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Nested or Inner Class in PHP

I'm building a User Class for my new website, however this time I was thinking to build it little bit differently... 10 A...
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How to check BLAS/LAPACK linkage in NumPy and SciPy?

I am builing my numpy/scipy environment based on blas and lapack more or less based on this walk through. 5 Answers ...
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How to tell if a tag failed to load

...y adding <script> tags to a page's <head> , and I'd like to be able to tell whether the loading failed in some way -- a 404, a script error in the loaded script, whatever. ...
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Define variable to use with IN operator (T-SQL)

... DECLARE @MyList TABLE (Value INT) INSERT INTO @MyList VALUES (1) INSERT INTO @MyList VALUES (2) INSERT INTO @MyList VALUES (3) INSERT INTO @MyList VALUES (4) SELECT * FROM MyTable WHERE MyColumn IN (SELECT Value FROM @MyList) ...
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Difference Between Select and SelectMany

I've been searching the difference between Select and SelectMany but I haven't been able to find a suitable answer. I need to learn the difference when using LINQ To SQL but all I've found are standard array examples. ...