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How to install Maven 3 on Ubuntu 18.04/17.04/16.10/16.04 LTS/15.10/15.04/14.10/14.04 LTS/13.10/13.04
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APerson
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answered May 15 '13 at 13:25
miskemiske
2...
Find column whose name contains a specific string
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239
Just iterate over DataFrame.columns, now this is an example in which you will end up with a lis...
How do I convert an integer to binary in JavaScript?
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13 Answers
13
Active
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How do I build a numpy array from a generator?
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130
Numpy arrays require their length to be set explicitly at creation time, unlike python lists. T...
When to use window.opener / window.parent / window.top
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163
window.opener refers to the window that called window.open( ... ) to open the window from which...
How to print to stderr in Python?
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Leon
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answered Feb 20 '13 at 13:31
MarcHMarcH
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What is the use of Enumerable.Zip extension method in Linq?
...= new string[] { "A", "B", "C", "D", "E" };
var numbers= new int[] { 1, 2, 3 };
var q = letters.Zip(numbers, (l, n) => l + n.ToString());
foreach (var s in q)
Console.WriteLine(s);
Ouput
A1
B2
C3
share
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Simple explanation of MapReduce?
...hem back in the same kind of list.
suppose I have a list of numbers: [1,2,3] and I want to double every number, in this case, the function to "double every number" is function x = x * 2. And without mappings, I could write a simple loop, say
A = [1, 2, 3]
foreach (item in A) A[item] = A[item] * 2
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Appropriate datatype for holding percent values?
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133
Assuming two decimal places on your percentages, the data type you use depends on how you plan ...
Knight's Shortest Path on Chessboard
...e moves are disconnected (value=0), the sparse matrix would be like:
(a1,b3)=1,
(a1,c2)=1,
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And the shortest path of two points in a graph can be found using http://en.wikipedia.org/wiki/Dijkstra's_algorithm
Pseudo-code from wikipedia-page:
function Dijkstra(Graph, source):
for each v...