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How to normalize an array in NumPy?
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import numpy as np
from sklearn.preprocessing import normalize
x = np.random.rand(1000)*10
norm1 = x / np.linalg.norm(x)
norm2 = normalize(x[:,np.newaxis], axis=0).ravel()
print np.all(norm1 == norm2)
# True
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JavaScript listener, “keypress” doesn't detect backspace?
...etc.
UPDATE:
The keypress event is fired when a key is pressed down and that key normally produces a character value
Reference.
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How do I read the first line of a file using cat?
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+1. you only need the head not the whole cat :P (the command tail is part of the bash pun too)
– SparK
Feb 17 '14 at 18:54
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Why C# implements methods as non-virtual by default?
...rtual by default means that every function in the class can be plugged out and replaced by another, which is not really a good thing. Many people even believe that classes should have been sealed by default.
virtual methods can also have a slight performance implication. This is not likely to be th...
Jquery - How to make $.post() use contentType=application/json?
...N datatype in your example refers to the datatype returned from the server and not the format sent to the server.
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PhpStorm text size
...anks, already found it. Now using Sublime Text an Notepad++ - much simpler and faster
– ymakux
Aug 31 '15 at 18:12
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HTTP error 403 in Python 3 Web Scraping
... This works but I feel like they must have a good reason to block bots and I'm violating their terms of service
– xjcl
Oct 11 '19 at 7:19
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Call a controller function from a directive without isolated scope in AngularJS
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Since the directive is only calling a function (and not trying to set a value on a property), you can use $eval instead of $parse (with a non-isolated scope):
scope.$apply(function() {
scope.$eval(attrs.confirmAction);
});
Or better, simply just use $apply, which wi...
Format floats with standard json module
I am using the standard json module in python 2.6 to serialize a list of floats. However, I'm getting results like this:
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Hibernate JPA Sequence (non-Id)
...d posting that as a separate answer? It solved my problem very very simply and effectively.
– Matt Ball
May 17 '12 at 15:26
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