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Force R not to use exponential notation (e.g. e+10)?
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Best way to stress test a website [duplicate]
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edited Jan 28 '14 at 14:10
Cleanshooter
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How to add leading zeros for for-loop in shell? [duplicate]
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247
Use the following syntax:
$ for i in {01..05}; do echo "$i"; done
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Disclaimer: L...
How can I clear or empty a StringBuilder? [duplicate]
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answered Mar 4 '11 at 10:29
Marcus FrödinMarcus Frödin
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Rank items in an array using Python/NumPy, without sorting array twice
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Use slicing on the left-hand side in the last step:
array = numpy.array([4,2,7,1])
temp = array.argsort()
ranks = numpy.empty_like(temp)
ranks[temp] = numpy.arange(len(array))
This avoids sorting twice by inverting the permutation in the last step.
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Understanding recursion [closed]
...t to children, and @ means the pointer points to null):
5
/ \
4 3
/\ /\
2 1 @ @
/\ /\
@@ @@
If we call sumNode on the root (the node with value 5), we will return:
return root->value + sumNode( root->left ) + sumNode( root->right ) ;
return 5 + sumNode( node-with-...
Tricky Google interview question
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Dijkstra derives an eloquent solution in "A Discipline of Programming". He attributes the proble...
Page redirect after certain time PHP
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edited Jun 12 '14 at 13:51
jp2code
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Is there a way to check if int is legal enum in C#?
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[Flags] public enum PetType
{
None = 0, Dog = 1, Cat = 2, Rodent = 4, Bird = 8, Reptile = 16, Other = 32
};
public class Example
{
public static void Main()
{
object value;
// Call IsDefined with underlying integral value of member.
value = 1;
Console.Writ...
How is a CRC32 checksum calculated?
...32 is:
x32 + x26 + x23 + x22 + x16 + x12 + x11 + x10 + x8 + x7 + x5 + x4 + x2 + x + 1
Wikipedia
CRC calculation
Or in hex and binary:
0x 01 04 C1 1D B7
1 0000 0100 1100 0001 0001 1101 1011 0111
The highest term (x32) is usually not explicitly written, so it can instead be represente...