VariableStatistics

Package: 
Extends: 
Is Abstract: 
no
Is Pattern: 
no
Definition: 

Contains summary and category level statistics for the referenced variable.

Explanatory Notes: 

Includes information on the total number of responses, the weights in calculating the statistics, variable level summary statistics, and category statistics. The category statistics may be provided as unfiltered values or filtered through a single variable. For example the category statistics for Sex filtered by the variable Country for a multi-national data file. Note that if no weighting factor is identified, all of the statistics provided are unweighted.

Example: 
A mean of values for a variable "Height". Counts for each level of variable "Gender" (male and female)
Property: 
NameCardinalityDatatypeDescription
totalResponses
0..1
The total number of responses to this variable. This element is especially useful if the number of responses does not match added case counts. It may also be used to sum the frequencies for variable categories.
hasSummaryStatistic
0..n
Statistic that provides a summary value, filtered or unfiltered, weighted or unweighted, expressed as an xs:decimal or xs:double
hasCategoryStatistic
0..n
Statistics that provides a category specific values, filtered or unfiltered, weighted or unweighted, expressed as an xs:decimal or xs:double
Relationship: 
NameTarget ObjectDescriptionSource cardinalityTarget cardinalityRelationship type
forInstanceVariable
Reference to the variable to which the statistics apply.
0..n
0..1
Neither
usesStandardWeight
Reference to the StandardWeight value provided in Weighting.
0..n
0..1
Neither
applicableWeightVariable
Reference to a variable to use for weight in calculating the statistic.
0..n
0..1
Neither
hasFilterVariable
A variable that may be used to filter the summary and/or category statistics (for example by country or by gender)
0..n
0..1
Neither
realizes
Uses the pattern of the abstract class Member
0..n
1..1
Neither

Stage:

DDI 3.2: 
pi:VariableStatisticsType
Is extendable: 
Is property: 
0
RDF Mapping: