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Finding the index of elements based on a condition using python list comprehension
...do need an API similar to Matlab's, you would use numpy, a package for multidimensional arrays and numerical math in Python which is heavily inspired by Matlab. You would be using a numpy array instead of a list.
>>> import numpy
>>> a = numpy.array([1, 2, 3, 1, 2, 3])
>>>...
Source code highlighting in LaTeX
... 1.2 …
Presenting minted
minted is a package that uses Pygments to provide top-notch syntax highlighting in LaTeX. For example, it allows the following output.
Here’s a minimal file to reproduce the above code (notice that including Unicode characters might require XeTeX)!
\documentclass[a...
Cancellation token in Task constructor: why?
...sitioning to
Running, it'll immediately transition to Canceled. This avoids the
costs of running the task if it would just be canceled while running
anyway.
If the body of the task is also monitoring the cancellation token and throws an OperationCanceledException containing that token
(wh...
How do I use Node.js Crypto to create a HMAC-SHA1 hash?
...
A few years ago it was said that update() and digest() were legacy methods and the new streaming API approach was introduced. Now the docs say that either method can be used. For example:
var crypto = require('crypto');
var text = 'I love cu...
C++11 range based loop: get item by value or reference to const
...
If you don't want to change the items as well as want to avoid making copies, then auto const & is the correct choice:
for (auto const &x : vec)
Whoever suggests you to use auto & is wrong. Ignore them.
Here is recap:
Choose auto x when you want to work with copies.
...
Getting individual colors from a color map in matplotlib
...255210428, 0.99923106502084169, 0.74602077638401709, 1.0)
For values outside of the range [0.0, 1.0] it will return the under and over colour (respectively). This, by default, is the minimum and maximum colour within the range (so 0.0 and 1.0). This default can be changed with cmap.set_under() and...
How to get last items of a list in Python?
...ls Python you're giving it a slice and not a regular index. That's why the idiomatic way of copying lists in Python 2 is
list_copy = sequence[:]
And clearing them is with:
del my_list[:]
(Lists get list.copy and list.clear in Python 3.)
Give your slices a descriptive name!
You may find it ...
How to declare a global variable in a .js file
...
Just define your variables in global.js outside a function scope:
// global.js
var global1 = "I'm a global!";
var global2 = "So am I!";
// other js-file
function testGlobal () {
alert(global1);
}
To make sure that this works you have to include/link to global.j...
After array_filter(), how can I reset the keys to go in numerical order starting at 0
...
Yes. My point is that developers should avoid the urge to use the default behavior of array_filter() unless their intimate knowledge of the data permits greedy filtering without side effects. (A further caution: empty() behaves in this same fashion and also includes ...
How to understand Locality Sensitive Hashing?
...//infolab.stanford.edu/~ullman/mmds/ch3a.pdf
Also I recommend the below slide:
http://www.cs.jhu.edu/%7Evandurme/papers/VanDurmeLallACL10-slides.pdf .
The example in the slide helps me a lot in understanding the hashing for cosine similarity.
I borrow two slides from Benjamin Van Durme & Ashwi...