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Generate random numbers with a given (numerical) distribution
...istribution object to generate random numbers.
As pointed out by Eugene Pakhomov in the comments, you can also pass a p keyword parameter to numpy.random.choice(), e.g.
numpy.random.choice(numpy.arange(1, 7), p=[0.1, 0.05, 0.05, 0.2, 0.4, 0.2])
If you are using Python 3.6 or above, you can use r...
Delete an element from a dictionary
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The del statement removes an element:
del d[key]
However, this mutates the existing dictionary so the contents of the dictionary changes for anybody else who has a reference to the same instance. To return a new dictionary, make a copy of the dictionary:
def removek...
How to make a HTTP request using Ruby on Rails?
I would like to take information from another website. Therefore (maybe) I should make a request to that website (in my case a HTTP GET request) and receive the response.
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How to add text at the end of each line in Vim?
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Alan CurryAlan Curry
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unique object identifier in javascript
I need to do some experiment and I need to know some kind of unique identifier for objects in javascript, so I can see if they are the same. I don't want to use equality operators, I need something like the id() function in python.
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What is SOA “in plain english”? [closed]
... answered Jan 8 '10 at 9:20
KB22KB22
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What is the “hasClass” function with plain JavaScript?
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You can check whether element.className matches /\bthatClass\b/.
\b matches a word break.
Or, you can use jQuery's own implementation:
var className = " " + selector + " ";
if ( (" " + element.className + " ").replace(/[\n\t]/g, " ").i...
Meaning of tilde in Linux bash (not home directory)
First off, I know that ~/ is the home directory. CDing to ~ or ~/ takes me to the home directory.
8 Answers
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strdup() - what does it do in C?
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Exactly what it sounds like, assuming you're used to the abbreviated way in which C and UNIX assigns words, it duplicates strings :-)
Keeping in mind it's actually not part of the ISO C standard itself(a) (it's a POSIX thing), it's effectively doing...
Can someone give an example of cosine similarity, in a very simple, graphical way?
Cosine Similarity article on Wikipedia
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