<rdgGrp>

<rdgGrp> (reading group) within a textual variation, groups two or more readings perceived to have a genetic relationship or other affinity. [12.1. The Apparatus Entry, Readings, and Witnesses]
Moduletextcrit
Attributesatt.global (@xml:id, @n, @xml:lang, @xml:base, @xml:space) (att.global.rendition (@rend, @style, @rendition)) (att.global.linking (@corresp, @synch, @sameAs, @copyOf, @next, @prev, @exclude, @select)) (att.global.analytic (@ana)) (att.global.facs (@facs)) (att.global.change (@change)) (att.global.responsibility (@cert, @resp)) (att.global.source (@source)) att.textCritical (@type, @cause, @varSeq, @require) (att.written (@hand))
Contained by
textcrit: app rdgGrp
May contain
core: note noteGrp
textcrit: lem rdg rdgGrp wit
Note

May contain readings and nested reading groups.

Usually, only one lem element should appear within a single apparatus entry, whether it appears outside a rdgGrp element or within it.

Example
<app>
 <lem wit="#El #Ra2">though</lem>
 <rdgGrp type="orthographic">
  <rdg wit="#Hg">thogh</rdg>
  <rdg wit="#La">thouhe</rdg>
 </rdgGrp>
</app>
Schematron

<sch:assert test="count(tei:lem) < 2">Only one <lem> element may appear within a <rdgGrp></sch:assert>
Content model
<content>
 <sequence>
  <elementRef key="lem" minOccurs="0"/>
  <alternate maxOccurs="unbounded"
   minOccurs="0">
   <classRef key="model.rdgLike"/>
   <classRef key="model.noteLike"/>
   <elementRef key="witDetail"/>
   <elementRef key="wit"/>
   <elementRef key="rdgGrp"/>
  </alternate>
 </sequence>
</content>
Schema Declaration
element rdgGrp
{
   tei_att.global.attributes,
   tei_att.textCritical.attributes,
   (
      tei_lem?,
      (
         tei_model.rdgLike
       | tei_model.noteLike
       | witDetail
       | tei_wit
       | tei_rdgGrp
      )*
   )
}