<precision>

<precision> indicates the numerical accuracy or precision associated with some aspect of the text markup. [21.2 Indications of Precision]
Modulecertainty — Certainty, Precision, and Responsibility
Attributesatt.global (@xml:id, @n, @xml:lang, @rend, @style, @rendition, @xml:base, @xml:space) (att.global.linking (@corresp, @synch, @sameAs, @copyOf, @next, @prev, @exclude, @select)) (att.global.analytic (@ana)) (att.global.facs (@facs)) (att.global.change (@change)) att.scoping (@target, @match) att.ranging (@atLeast, @atMost, @min, @max, @confidence)
degreeindicates the degree of precision to be assigned as a value between 0 (none) and 1 (optimally precise)
Status Optional
Datatype 

<rng:ref name="data.probability"/>
data.probability
precisioncharacterizes the precision of the element or attribute pointed to by the precision element.
Status Optional
Datatype 

<rng:ref name="data.certainty"/>
data.certainty
stdDeviationsupplies a standard deviation associated with the value in question
Status Optional
Datatype 

<rng:ref name="data.numeric"/>
data.numeric
Member of
model.certLike model.global.meta
Contained by
analysis: cl interp m phr s span w
certainty: certainty precision respons
core: abbr add addrLine address author bibl biblScope cit citedRange corr date del distinct editor email emph expan foreign gap gloss head headItem headLabel hi imprint item l label lg list measure mentioned name note num orig p pubPlace publisher q quote ref reg resp rs said series sic soCalled sp speaker stage street term textLang time title unclear
corpus: activity channel constitution derivation domain factuality interaction locale preparedness purpose
dictionaries: case colloc def dictScrap entry entryFree etym form gen gram gramGrp hom hyph iType lang lbl mood number orth per pos pron re sense stress subc syll tns usg xr
drama: actor camera caption castGroup castItem castList epilogue performance prologue role roleDesc set sound spGrp tech view
figures: cell figure table
header: authority change classCode distributor edition extent funder geoDecl handNote language licence principal scriptNote sponsor typeNote
linking: ab join seg
msdescription: accMat acquisition additions catchwords collation colophon condition custEvent decoNote explicit filiation finalRubric foliation heraldry incipit layout material msItem musicNotation objectType origDate origPlace origin provenance rubric secFol signatures source stamp summary support surrogates watermark
namesdates: addName affiliation age birth bloc country death district education faith floruit forename genName geogFeat geogName langKnown nameLink nationality occupation orgName persName person placeName region residence roleName settlement sex socecStatus surname
nets: graph
spoken: u writing
tagdocs: eg valDesc
textcrit: app lem rdg wit witDetail
textstructure: argument back body byline closer dateline div div1 div2 div3 div4 div5 div6 div7 docAuthor docDate docEdition docImprint docTitle epigraph floatingText front group imprimatur opener postscript salute signed text titlePage titlePart trailer
transcr: damage fw line metamark mod restore retrace sourceDoc space substJoin supplied surface surfaceGrp surplus zone
verse: metSym rhyme
May contain
certainty: certainty precision respons
core: desc
Declaration

<rng:element name="precision">
 <rng:ref name="att.global.attributes"/>
 <rng:ref name="att.global.linking.attributes"/>
 <rng:ref name="att.global.analytic.attributes"/>
 <rng:ref name="att.global.facs.attributes"/>
 <rng:ref name="att.global.change.attributes"/>
 <rng:ref name="att.scoping.attributes"/>
 <rng:ref name="att.ranging.attributes"/>
 <rng:optional>
  <rng:attribute name="degree">
   <rng:ref name="data.probability"/>
  </rng:attribute>
 </rng:optional>
 <rng:optional>
  <rng:attribute name="precision">
   <rng:ref name="data.certainty"/>
  </rng:attribute>
 </rng:optional>
 <rng:optional>
  <rng:attribute name="stdDeviation">
   <rng:ref name="data.numeric"/>
  </rng:attribute>
 </rng:optional>
 <rng:zeroOrMore>
  <rng:choice>
   <rng:ref name="model.descLike"/>
   <rng:ref name="model.certLike"/>
  </rng:choice>
 </rng:zeroOrMore>
</rng:element>
element precision
{
   att.global.attributes,
   att.global.linking.attributes,
   att.global.analytic.attributes,
   att.global.facs.attributes,
   att.global.change.attributes,
   att.scoping.attributes,
   att.ranging.attributes,
   attribute degree { data.probability }?,
   attribute precision { data.certainty }?,
   attribute stdDeviation { data.numeric }?,
   ( model.descLike | model.certLike )*
}
Example
<date xml:id="date001" notBefore="0014" notAfter="0064">Within about 50
years of the death of Augustus</date>
<precision target="#date001" match="@notBefore" degree="0.9"/>
<precision target="#date001" match="@notAfter" degree="0.3"/>
Example
<date notBefore="1632" notAfter="1642">Not more than ten years before the start of the Civil War
<precision match="@notBefore" precision="low"/>
 <precision match="@notAfter" precision="high"/>
</date>