URI: http://www.qualityml.org/1.0/metrics/Specificity
Name: Specificity
Alternative names:  
Definition:

Specificity relates to the test's ability to identify negative results. The specificity of a test is defined as the proportion of patients that are known not to have the disease who will test negative for it. This can also be written as:

Parameters: actual categories
Source: GeoViQua
Categories: Thematic accuracy
Further information:

http://en.wikipedia.org/wiki/Sensitivity_and_specificity

Fawcett T (2006) An introduction to ROC analysis: https://cours.etsmtl.ca/sys828/REFS/A1/Fawcett_PRL2006.pdf

XML schema:
<schema xmlns:qml="http://www.qualityml.org/1.0" 
xmlns:un="http://www.uncertml.org/2.0" 
xmlns="http://www.w3.org/2001/XMLSchema" targetNamespace="http://www.qualityml.org/1.0" 
elementFormDefault="qualified" attributeFormDefault="unqualified">
<import namespace="http://www.uncertml.org/2.0" schemaLocation="../../uncertml/2.0/uncertml.xsd"/>

	<element name="Specificity" type="qml:ContinuousValuesSummaryStatisticType" substitutionGroup="un:AbstractSummaryStatistic"/>
XML example:
<un:StatisticsCollection xmlns:qml="http://www.qualityml.org/1.0" 

   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
   xsi:schemaLocation="http://www.qualitymlorg/schemas/qualityml/1.0/qualityml.xsd">

		<qml:Specificity>
<qml:values>0.8</qml:values>
</qml:Specificity>
JSON example:
N/A
API example:
N/A
Value constraints: categories: any string
counts: any positive natural number