The SetToken commands sets the authentication token used for Quandl API calls.

By default, Maple does not use an authentication token for Quandl API calls. That is, API calls are made anonymously.

Anonymous API calls can only access public databases and are limited in the number of requests that can be made per day.

If you have a Quandl authentication token, use SetToken("yourToken") to perform more Quandl API requests and to access premium databases you have purchased. See http://www.quandl.com/ for more information on the Quandl API and authentication tokens.

The premium option is used by Maple to determine what errors to return when a request fails. It does not allow you to access to premium databases.

The default value for the premium option is false. In this case, Maple returns a warning and an empty data set the first time you request data from a premium database. After that, only the empty data set is returned (that is, Maple knows not to expect valid data sets for every request).

Set premium = true if you have access to premium databases. In this case, Maple always returns an error if your request results in an empty data set.

SetToken returns the value of the previous authentication token.

Add SetToken to your personal initialization file in order to set your Quandl authentication token every time you start or restart Maple.

$\mathrm{with}\left(\mathrm{DataSets}\right)\:$

$\mathrm{Quandl}:-\mathrm{SetToken}\left(''''\,\mathrm{premium}\=\mathrm{false}\right)$

Open a text editor.

If you have an initialization file, open it. If not, create a new one.

Windows: <homeDirectory>\maple.ini

Linux or Mac: <homeDirectory>/.mapleinit

Add the following command to your initialization file:

DataSets:-Quandl:-SetToken("yourToken", premium = premiumAccess ):

Save and then close your initialization file.

The DataSets[Quandl][SetToken] command was introduced in Maple 2015.

For more information on Maple 2015 changes, see Updates in Maple 2015.