View source for Programmed responses question type

{{Questions}}
The programmed response question type for Moodle 1.9 gets the question answer through a set of editable and non-native PHP functions. Useful for maths or statistics exercices which requires complex operations to get the answer.

==Features==
* Users can add variables to the question text, the variables takes random values depending on 
the user selection: max value, min value, increment and the number of values (scalar/vectorial - float/array)

* The function arguments can be one of the question text defined variables, a concatenation of defined variables or fixed values.

* User interface to allow the addition of functions. These functions can return one or more values, useful for example to return confidence intervals.

==Requirements==
* Moodle 1.9.x
* Users with Javascript/AJAX support enabled

==Download==
From the [https://moodle.org/plugins/view.php?plugin=qtype_programmedresp Moodle Plugins database].

==Usage==
#1st step (optional): Variables can be added to the question text following the next format: {$varname} 
The variables only accepts alphanumeric characters.

#2nd step (optional, depends on the first step): Each variable must define the maximum and minimum values it can take, the increment and the number of values, to allow vectorial variables.

#3rd step (optional): Add concat variables, useful if there should be a vectorial variable which values follows different criteria

#4th step: Select the function which will calculate the answer (read ADDING FUNCTIONS to know how to add functions)

#5th step: Assign each of the function arguments to a variable or a concat variable, the function can also use a fixed value as argument

==Adding functions==
There is an interface to allow the addition of functions; preceding the php implementation of each function there should be a comment block following phpdoc format, to specify the arguments description and the returned values.

==Credits==
Tool designed by Josep Maria Mateo, Carme Olivé and Dolors Puigjaner, members of DEQ 
and DEIM departments of the Universitat Rovira i Virgili.
Consultoria Mosaic 

==See also==
* [https://github.com/dmonllao/moodle-qtype_programmedresp/blob/master/README More documentation on this plugin]
* [https://github.com/dmonllao/moodle-qtype_programmedresp Source control URL]
* [http://moodle.org/mod/forum/discuss.php?d=194162 Plugin forum]

[[Category:Contributed code]]
[[Category:Questions]]
[[Category:Mathematics]]
[[Category:Programming]]

[[es:Tipo de pregunta respuestas programadas]]