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Difference between Eclipse Europa, Helios, Galileo
...June 2014 4.4 Luna Projects
Kepler 26 June 2013 4.3 Kepler Projects
Juno 27 June 2012 4.2 Juno Projects
Indigo 22 June 2011 3.7 Indigo projects
Helios 23 June 2010 3.6 ...
Maximum number of characters using keystrokes A, Ctrl+A, Ctrl+C and Ctrl+V
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43
There's a dynamic programming solution. We start off knowing 0 keys can make us 0 A's. Then we i...
Apply a function to every row of a matrix or a data frame
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You simply use the apply() function:
R> M <- matrix(1:6, nrow=3, byrow=TRUE)
R> M
[,1] [,2]
[1,] 1 2
[2,] 3 4
[3,] 5 6
R> apply(M, 1, function(x) 2*x[1]+x[2])
[1] 4 10 16
R>
This takes a matrix and applies a (silly) function to each row. You pass extr...
List of lists changes reflected across sublists unexpectedly
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593
When you write [x]*3 you get, essentially, the list [x, x, x]. That is, a list with 3 references...
Convert list of dictionaries to a pandas DataFrame
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cs95
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answered Dec 17 '13 at 15:35
jorisjoris
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xkcd style graphs in MATLAB
...t a transformation.
%# define plot data
x = 1:0.1:10;
y1 = sin(x).*exp(-x/3) + 3;
y2 = 3*exp(-(x-7).^2/2) + 1;
%# plot
fh = figure('color','w');
hold on
plot(x,y1,'b','lineWidth',3);
plot(x,y2,'w','lineWidth',7);
plot(x,y2,'r','lineWidth',3);
xlim([0.95 10])
ylim([0 5])
set(gca,'fontName','Comic ...
How do I sort one vector based on values of another
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edited Oct 15 '09 at 0:31
answered Oct 14 '09 at 21:47
I...
How does java do modulus calculations with negative numbers?
Am I doing modulus wrong? Because in Java -13 % 64 is supposed to evaluate to -13 but I get 51 .
14 Answers
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Why does [5,6,8,7][1,2] = 8 in JavaScript?
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3 Answers
3
Active
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What's the difference between “mod” and “remainder”?
... is a difference between modulus and remainder. For example:
-21 mod 4 is 3 because -21 + 4 x 6 is 3.
But -21 divided by 4 gives -5 with a remainder of -1.
For positive values, there is no difference.
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