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How do you rotate a two dimensional array?
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Here it is in C#
int[,] array = new int[4,4] {
{ 1,2,3,4 },
{ 5,6,7,8 },
{ 9,0,1,2 },
{ 3,4,5,6 }
};
int[,] rotated = RotateMatrix(array, 4);
static int[,] RotateMatrix(int[,] matrix, int n) {
int[,] ret = new ...
Convert data.frame columns from factors to characters
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Just following on Matt and Dirk. If you want to recreate your existing data frame without changing the global option, you can recreate it with an apply statement:
bob <- data.frame(lapply(bob, as.character), stringsAsFactors=FALSE)
This will convert all variables to class "character...
Move the mouse pointer to a specific position?
...c event so that moving in a specific direction always has the same result. Is this possible?
10 Answers
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Fastest way to download a GitHub project
...t Spring data graph example into my box. It has public read-only access. Is there is an extremely fast way of downloading this code?
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COALESCE Function in TSQL
Can someone explain how the COALESCE function in TSQL works? The syntax is as follows
7 Answers
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Convert form data to JavaScript object with jQuery
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edited Aug 19 at 8:54
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Java Generics (Wildcards)
...y saying that it either has to extend a specific type (<? extends T> is known as an upper bound), or has to be an ancestor of a specific type (<? super T> is known as a lower bound).
The Java Tutorials have some pretty good explanations of generics in the articles Wildcards and More Fun...
Where is the IIS Express configuration / metabase file found?
Where can the IIS Express configuration / metabase file be found?
6 Answers
6
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BCL (Base Class Library) vs FCL (Framework Class Library)
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The Base Class Library (BCL) is literally that, the base. It contains basic, fundamental types like System.String and System.DateTime.
The Framework Class Library (FCL) is the wider library that contains the totality: ASP.NET, WinForms, the XML stack, ...
Pandas percentage of total with groupby
This is obviously simple, but as a numpy newbe I'm getting stuck.
14 Answers
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