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Read .mat files in Python
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Save a variable with this command from the prompt: save('filename', '-v7.3', 'var1');
– Kevin Katzke
Jul 2 '17 at 19:24
1
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How to make asynchronous HTTP requests in PHP
...d didn't work. It still waited for responses. This does work though, taken from How do I make an asynchronous GET request in PHP?
function post_without_wait($url, $params)
{
foreach ($params as $key => &$val) {
if (is_array($val)) $val = implode(',', $val);
$post_params[] =...
Can someone give an example of cosine similarity, in a very simple, graphical way?
...d counts (and ignoring word order). We begin by making a list of the words from both texts:
me Julie loves Linda than more likes Jane
Now we count the number of times each of these words appears in each text:
me 2 2
Jane 0 1
Julie 1 1
Linda 1 0
likes 0 1
loves 2 1
mo...
How to get a specific “commit” of a gem from github?
...ub.com/rails/rails.git', :tag => 'v2.3.5'
Source: How to install gems from git repositories
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Shell script while read line loop stops after the first line
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The problem is that do_work.sh runs ssh commands and by default ssh reads from stdin which is your input file. As a result, you only see the first line processed, because ssh consumes the rest of the file and your while loop terminates.
To prevent this, pass the -n option to your ssh command to m...
What is the difference between \r and \n?
...command prompt, hit enter, and the PC speaker will beep. That's left over from ancient times.
– Dave Carlile
Aug 14 '09 at 19:58
1
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SQL Server, convert a named instance to default instance?
...nstance to default - my reason was to access it with just the machine name from various applications.
If you want to access a named instance from any connection string without using the instance name, and using only the server name and/or IP address, then you can do the following:
Open SQL Server...
vim deleting backward tricks
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In general, d<motion> will delete from current position to ending position after <motion>. This means that:
d<leftArrow> will delete current and left character
d$ will delete from current position to end of line
d^ will delete from current backw...
Install Node.js on Ubuntu
... software-properties-common
As of Node.js v0.10.0, the nodejs package from Chris Lea's repo
includes both npm and nodejs-dev.
Don't give sudo apt-get install nodejs npm just sudo apt-get install nodejs
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How does one write code that best utilizes the CPU cache to improve performance?
...ansfered (preserving memory bandwidth).
Techniques for avoiding suffering from memory fetch latency is typically the first thing to consider, and sometimes helps a long way. The limited memory bandwidth is also a limiting factor, particularly for multicores and multithreaded applications where many...