core_question\statistics\responses\analysis_for_question_all_tries Class Reference

Analysis for possible responses for parts of a question with multiple submitted responses. More...

Inheritance diagram for core_question\statistics\responses\analysis_for_question_all_tries:

Public Member Functions
	cache ($qubaids, $whichtries, $questionid, $calculationtime=null)
	Save the analysis to the DB, first cleaning up any old ones.
	count_response_parts ($variantno, $responsepartsforeachtry)
	Constructor.
	get_analysis_for_subpart ($variantno, $subpartid)
	Get the response counts etc.
	get_maximum_tries ()
	What is the highest number of tries at this question?
	get_subpart_ids ($variantno)
	Unique ids for sub parts.
	get_variant_nos ()
	Variant nos found in this question's attempt data.
	has_actual_responses ()
	has_multiple_response_classes ()
	Used to work out what kind of table is needed to display stats.
	has_multiple_tries_data ()
	has_subparts ()
	Used to work out what kind of table is needed to display stats.

Protected Member Functions
	initialise_stats_for_variant ($variantno)
	Initialise data structure for response analysis of one variant.

Protected Attributes
array[]	$possibleresponses = array()
	See description above in constructor method.
array[]	$subparts = array()
	A multidimensional array whose first index is variant no and second index is subpart id, array contents are of type analysis_for_subpart.

Detailed Description

Analysis for possible responses for parts of a question with multiple submitted responses.

If the analysis was for a single try it would be handled by core_question::statistics::responses::analysis_for_question.

• There is a separate data structure for each question or sub question's analysis core_question::statistics::responses::analysis_for_question or core_question::statistics::responses::analysis_for_question_all_tries.
• There are separate analysis for each variant in this top level instance.
• Then there are class instances representing the analysis of each of the sub parts of each variant of the question. core_question::statistics::responses::analysis_for_subpart.
• Then within the sub part analysis there are response class analysis core_question::statistics::responses::analysis_for_class.
• Then within each class analysis there are analysis for each actual response core_question::statistics::responses::analysis_for_actual_response.

Copyright

2014 The Open University

Author

James Pratt me@ja.nosp@m.miep.nosp@m..org

License

http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later

Member Function Documentation

cache()

core_question\statistics\responses\analysis_for_question::cache ( $qubaids, $whichtries, $questionid, $calculationtime = null )

inherited

Save the analysis to the DB, first cleaning up any old ones.

Parameters

qubaid_condition	$qubaids	which question usages have been analysed.
string	$whichtries	which tries have been analysed?
int	$questionid	which question.
int | null	$calculationtime	time when the analysis was done. (Defaults to time()).

count_response_parts()

core_question\statistics\responses\analysis_for_question_all_tries::count_response_parts	(		$variantno,
			$responsepartsforeachtry )

Constructor.

Parameters

int	$variantno	variant number
array[]	$responsepartsforeachtry	for question with multiple tries we expect an array with first index being try no then second index is subpartid and values are question_classified_response

Reimplemented from core_question\statistics\responses\analysis_for_question.

get_analysis_for_subpart()

core_question\statistics\responses\analysis_for_question::get_analysis_for_subpart ( $variantno, $subpartid )

inherited

Get the response counts etc.

for variant $variantno, question sub part $subpartid.

Or if there is no recorded analysis yet then initialise the data structure for that part of the analysis and return the initialised analysis objects.

Parameters

int	$variantno
string	$subpartid	id for sub part.

Return values

analysis_for_subpart

get_maximum_tries()

core_question\statistics\responses\analysis_for_question_all_tries::get_maximum_tries

(

)

What is the highest number of tries at this question?

Return values

int	try number

Reimplemented from core_question\statistics\responses\analysis_for_question.

get_subpart_ids()

core_question\statistics\responses\analysis_for_question::get_subpart_ids ( $variantno )

inherited

Unique ids for sub parts.

Parameters

int

$variantno

Return values

string[]

get_variant_nos()

core_question\statistics\responses\analysis_for_question::get_variant_nos ( )

inherited

Variant nos found in this question's attempt data.

Return values

int[]

has_actual_responses()

core_question\statistics\responses\analysis_for_question::has_actual_responses ( )

inherited

Return values

bool	whether this analysis has a response class with more than one different actual response, or if the actual response is different from the model response.

has_multiple_response_classes()

core_question\statistics\responses\analysis_for_question::has_multiple_response_classes ( )

inherited

Used to work out what kind of table is needed to display stats.

Return values

bool	whether this question has (a subpart with) more than one response class.

has_multiple_tries_data()

core_question\statistics\responses\analysis_for_question_all_tries::has_multiple_tries_data

(

)

Return values

bool	Does this response analysis include counts for responses for multiple tries of the question?

Reimplemented from core_question\statistics\responses\analysis_for_question.

has_subparts()

core_question\statistics\responses\analysis_for_question::has_subparts ( )

inherited

Used to work out what kind of table is needed to display stats.

Return values

bool	whether this analysis has more than one subpart.

initialise_stats_for_variant()

core_question\statistics\responses\analysis_for_question::initialise_stats_for_variant ( $variantno )

protectedinherited

Initialise data structure for response analysis of one variant.

Parameters

int

$variantno

---

The documentation for this class was generated from the following file:

• question/classes/statistics/responses/analysis_for_question_all_tries.php