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How to flatten only some dimensions of a numpy array
...y to "sub-flatten" or flatten only some of the first dimensions in a numpy array?
4 Answers
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Ruby Hash to array of values
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Exactly what I was looking for when trying to create an array from a hash using it's keys as values. Thanks :)
– Fabian Leutgeb
Mar 5 '16 at 18:15
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How to perform element-wise multiplication of two lists?
...e you're already using numpy, it makes sense to store your data in a numpy array rather than a list. Once you do this, you get things like element-wise products for free:
In [1]: import numpy as np
In [2]: a = np.array([1,2,3,4])
In [3]: b = np.array([2,3,4,5])
In [4]: a * b
Out[4]: array([ 2, ...
How to install Boost on Ubuntu
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Installing Boost on Ubuntu with an example of using boost::array:
Install libboost-all-dev and aptitude:
sudo apt install libboost-all-dev
sudo apt install aptitude
aptitude search boost
Then paste this into a C++ file called main.cpp:
#include <iostream>
#include <bo...
How to send a header using a HTTP request through a curl call?
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In PHP:
curl_setopt($ch, CURLOPT_HTTPHEADER, array('HeaderName:HeaderValue'));
or you can set multiple:
curl_setopt($ch, CURLOPT_HTTPHEADER, array('HeaderName:HeaderValue', 'HeaderName2:HeaderValue2'));
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Objective-C Split()?
Is there any way to split strings in objective c into arrays? I mean like this - input string Yes:0:42:value into an array of (Yes,0,42,value)?
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How can I get the max (or min) value in a vector?
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Hi, do you know is it possible to apply it to dimension array or vector?
– Charles Chow
Aug 13 '14 at 21:58
3
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Bin size in Matplotlib (Histogram)
...st = np.linspace(min_edge, max_edge, Nplus1)
Note that linspace produces array from min_edge to max_edge broken into N+1 values or N bins
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Using a .php file to generate a MySQL dump
...ithub page, but more or less are auto-explicative:
$dumpSettingsDefault = array(
'include-tables' => array(),
'exclude-tables' => array(),
'compress' => 'None',
'no-data' => false,
'add-drop-database' => false,
'add-drop-table' => false,
'single-transac...
Mutable vs immutable objects
... objects. Using mutable objects gets a lot of bad press (e.g. returning an array of strings from a method) but I'm having trouble understanding what the negative impacts are of this. What are the best practices around using mutable objects? Should you avoid them whenever possible?
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