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How to swap two variables in JavaScript
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answered Apr 24 '13 at 20:39
showdevshowdev
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Ruby's ||= (or equals) in JavaScript?
...ndefined.
– Joshua Pinter
Jul 31 at 20:36
above comment is right. Taking your example case , it will not work the same...
Getting the array length of a 2D array in Java
...1
NG.NG.
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C++ Best way to get integer division and remainder
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answered Aug 15 '11 at 20:23
cnicutarcnicutar
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How can I reorder a list? [closed]
... get some sort of error?
– Mark
Jul 20 '15 at 2:44
no error, I just type: 1) import random; x = [1, 2, 3]; random.shuf...
Create a custom event in Java
...munity wiki".)
– cHao
Jan 23 '14 at 20:18
1
Does java have no built in thing for this? I would re...
how to create a file name with the current date & time in python?
...ort time
timestr = time.strftime("%Y%m%d-%H%M%S")
print timestr
yields:
20120515-155045
so your filename could append or use this string.
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Cartesian product of multiple arrays in JavaScript
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2020 Update: 1-line (!) answer with vanilla JS
Original 2017 Answer: 2-line answer with vanilla JS:
(see updates below)
All of the answers here are overly complicated, most of them take 20 lines of code or even more.
This exa...
How to find the Number of CPU Cores via .NET/C#?
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edited Feb 20 at 9:34
LionAM
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answered Apr 19 '10 at...
How can I create a correlation matrix in R?
... between your matrix x and matrix y. Ex.:
set.seed(1)
x <- matrix(rnorm(20), nrow=5, ncol=4)
y <- matrix(rnorm(15), nrow=5, ncol=3)
COR <- cor(x,y)
COR
image(x=seq(dim(x)[2]), y=seq(dim(y)[2]), z=COR, xlab="x column", ylab="y column")
text(expand.grid(x=seq(dim(x)[2]), y=seq(dim(y)[2])), la...