Here's a quick tutorial about how to download data from Quandl and show it in the browser.
I am using Chrome. Your mileage may vary with other browsers, not by much though.
All the code is here.
The first item on the agenda is to craft a Quandl API request.
We are telling Quandl to grab the Apple adjusted close (column 11) price history which are transformed into returns.
The 'auth_token' identifies us to the Quandl server. They also allow so many free calls per day, so no need to worry about it initially.
Code execution continues once XMLHttpRequest has loaded the data from Quandl.
We tell the browser what's to be executed with the
Firstly we write the returned data to do browser with the
Next calculate the median absolute deviation statistic using the JStat library with the
console.log() method tells the browser to show the result in the browser's "console". Usually you can bring up the console by pressing Ctrl+Alt+j or Command+Alt+j.