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How to randomize (or permute) a dataframe rowwise and columnwise?
...,1,0,0,0,1,1,1,0,1,0,1,1), ncol = 5)
set.seed(4)
out <- permatswap(mat, times = 99, burnin = 20000, thin = 500, mtype = "prab")
This gives:
R> out$perm[[1]]
[,1] [,2] [,3] [,4] [,5]
[1,] 1 0 1 1 1
[2,] 0 1 0 1 0
[3,] 0 0 0 1 1
[4,] 1 0...
What is the most effective way to get the index of an iterator of an std::vector?
...tter" depends on what behavior you want: Do you want to guarantee constant-time behavior, or do you want it to fall back to linear time when necessary?
it - vec.begin() takes constant time, but the operator - is only defined on random access iterators, so the code won't compile at all with list ite...
Viewing full version tree in git
...of those switches from the first version, or you just re-type them all the time ? Thank you.
– rchrd
May 15 at 23:08
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Custom attributes - Yea or nay?
...
sadly, writing css selectors for two classes at the same time (.a.b notice the missing blank) does not work in IE. it does work in firefox and other browsers though. still, using classes is a great way to embed additional semantic meaning to your markup
– kni...
OSX - How to auto Close Terminal window after the “exit” command executed.
...e shell exited cleanly for When the shell exits.
By the above config each time with exit command the Terminal will close but won't quit.
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Copying text outside of Vim with set mouse=a enabled
... more than on your screen? (then you have to scroll and select at the same time)
– Ozkan
Apr 2 '13 at 12:25
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How to implement a good __hash__ function in python [duplicate]
...me value for objects that are equal. It also shouldn't change over the lifetime of the object; generally you only implement it for immutable objects.
A trivial implementation would be to just return 0. This is always correct, but performs badly.
Your solution, returning the hash of a tuple of prop...
How to format all Java files in an Eclipse project at one time?
...ions%2f5133781%2fhow-to-format-all-java-files-in-an-eclipse-project-at-one-time%23new-answer', 'question_page');
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How to generate a random number in C++?
...f your test application is that you call srand once and then call rand one time and exit.
The whole point of srand function is to initialize the sequence of pseudo-random numbers with a random seed.
It means that if you pass the same value to srand in two different applications (with the same srand/...
Web scraping with Python [closed]
I'd like to grab daily sunrise/sunset times from a web site. Is it possible to scrape web content with Python? what are the modules used? Is there any tutorial available?
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