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How do you calculate the average of a set of circular data? [closed]
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ackb is right that these vector based solutions cannot be considered true averages of angles, they are only an average of the unit vector counterparts. However, ackb's suggested solution does not appear to mathematically sound.
The following is a solution...
How does JavaScript .prototype work?
...share of JavaScript code. I never really got my head around this prototype-based programming, does any one know how this works?
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Why does my application spend 24% of its life doing a null check?
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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Ruby on Rails: how do I sort with two columns using ActiveRecord?
...rs. The updated_at column will be a full timestamp, so if you want to sort based on the day it was updated, you need to use a function to get just the date part from the timestamp. In MySQL, that is DATE().
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Bulk insert with SQLAlchemy ORM
...tly, we can produce an INSERT that is
competitive with using the raw database API directly.
Alternatively, the SQLAlchemy ORM offers the Bulk Operations suite of
methods, which provide hooks into subsections of the unit of work
process in order to emit Core-level INSERT and UPDATE constru...
How to make a div fill a remaining horizontal space?
...der than the first column. That's it. Done. Ala Boushley's code:
Here's a demo in Stack Snippets & jsFiddle
#left {
float: left;
width: 180px;
}
#right {
margin-left: 180px;
}
/* just to highlight divs for example*/
#left { background-color: pink; }
#right { background-c...
Popstate on page's load in Chrome
...bably most usages (that's how it's set up in jquery.pjax.js and most other demos). But if the browsers implements window.history.state (like FF and Chrome 19+), window.history.state could be non-null on a refresh or after a browser restart
– unexplainedBacn
Jun...
jQuery load more data on scroll
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any chance of a demonstration via jsfiddle?
– cwiggo
Aug 29 '14 at 9:47
4
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Send POST request using NSURLSession
...ing: "yourURL")
var urlRequest = URLRequest(url: url!) // Note: This is a demo, that's why I use implicitly unwrapped optional
// Convert POST string parameters to data using UTF8 Encoding
let postParams = "api_key=APIKEY&email=example@example.com&password=password"
let postData = postPara...
MVC4 StyleBundle not resolving images
...e that with its own images folder, so I just specify 2 bundles, one for my base CSS and one for jQuery UI - which is maybe not uber-optimal in terms of requests, but life is short. Cheers!
– Tom W Hall
Jul 8 '12 at 22:41
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