<graph>

<graph> (graph) encodes a graph, which is a collection of nodes, and arcs which connect the nodes. [19.1 Graphs and Digraphs]
Module nets — Graphs, Networks, and Trees
Attributes
type⚓︎ describes the type of graph.
Derived from att.typed
Status Recommended
Datatype teidata.enumerated
Suggested values include:
undirected
undirected graph
directed
directed graph
transitionNetwork
a directed graph with distinguished initial and final nodes
transducer
a transition network with up to two labels on each arc
Note

If type is specified as undirected, then the distinction between the to and from attributes of the arc tag is neutralized. Also, the adj attribute, rather than the adjFrom and adjTo attributes, should be used to encode pointers to the ends of the arcs. If type is specified as directed (or any other value which implies directionality), then the adjFrom and adjTo attributes should be used, instead of the adj attribute.
order⚓︎ states the order of the graph, i.e., the number of its nodes.
Status Optional
Datatype teidata.count
size⚓︎ states the size of the graph, i.e., the number of its arcs.
Status Optional
Datatype teidata.count
Member of
model.divPart model.standOffPart
Contained by
core: item note q quote said stage textLang
drama: castList epilogue performance prologue set view
figures: cell figure
header: change handNote licence scriptNote
linking: standOff
msdescription: accMat acquisition additions collation condition custEvent decoNote filiation foliation layout musicNotation origin provenance signatures source summary support surrogates typeNote
namesdates: occupation
tagdocs: specGrp
textcrit: lem rdg
textstructure: argument body div div1 div2 div3 div4 div5 div6 div7 epigraph postscript
transcr: metamark
May contain
analysis: interp interpGrp span spanGrp
certainty: certainty precision respons
core: cb ellipsis gap gb index label lb milestone note noteGrp pb
figures: figure notatedMusic
iso-fs: fLib fs fvLib
linking: alt altGrp anchor join joinGrp link linkGrp timeline
nets: arc node
spoken: incident kinesic pause shift vocal writing
textcrit: app witDetail
transcr: addSpan damageSpan delSpan fw listTranspose metamark space substJoin
Note

One or more nodes and zero or more arcs in any order.
Example
<graph xml:id="cug1" type="undirected"
 order="5" size="4"
 rend="LABEL-PLACE bottom center NODE-FRAME none ARC solid line">
 <label>Airline Connections in Southwestern USA</label>
 <node xml:id="lax" degree="2">
  <label>LAX</label>
 </node>
 <node xml:id="lvg" degree="2">
  <label>LVG</label>
 </node>
 <node xml:id="phx" degree="3">
  <label>PHX</label>
 </node>
 <node xml:id="tus" degree="1">
  <label>TUS</label>
 </node>
 <node xml:id="cib" degree="0">
  <label>CIB</label>
 </node>
 <arc from="#lax" to="#lvg"/>
 <arc from="#lax" to="#phx"/>
 <arc from="#lvg" to="#phx"/>
 <arc from="#phx" to="#tus"/>
</graph>
Content model 
<content>
 <sequence>
  <sequence minOccurs="0">
   <elementRef key="label"/>
   <classRef key="model.global"
    minOccurs="0" maxOccurs="unbounded"/>
  </sequence>
  <alternate>
   <sequence>
    <sequence minOccurs="1"
     maxOccurs="unbounded">
     <elementRef key="node"/>
     <classRef key="model.global"
      minOccurs="0" maxOccurs="unbounded"/>
    </sequence>
    <sequence minOccurs="0"
     maxOccurs="unbounded">
     <elementRef key="arc"/>
     <classRef key="model.global"
      minOccurs="0" maxOccurs="unbounded"/>
    </sequence>
   </sequence>
   <sequence>
    <sequence minOccurs="1"
     maxOccurs="unbounded">
     <elementRef key="arc"/>
     <classRef key="model.global"
      minOccurs="0" maxOccurs="unbounded"/>
    </sequence>
    <sequence minOccurs="1"
     maxOccurs="unbounded">
     <elementRef key="node"/>
     <classRef key="model.global"
      minOccurs="0" maxOccurs="unbounded"/>
    </sequence>
   </sequence>
  </alternate>
 </sequence>
</content>
Schema Declaration 
<rng:element name="graph">
 <rng:ref name="att.global.attributes"/>
 <rng:ref name="att.global.rendition.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.global.responsibility.attributes"/>
 <rng:ref name="att.global.source.attributes"/>
 <rng:ref name="att.typed.attribute.subtype"/>
 <rng:optional>
  <rng:attribute name="type">
   <rng:choice>
    <rng:value>undirected</rng:value>
    <rng:value>directed</rng:value>
    <rng:value>transitionNetwork</rng:value>
    <rng:value>transducer</rng:value>
    <rng:ref name="teidata.enumerated"/>
   </rng:choice>
  </rng:attribute>
 </rng:optional>
 <rng:optional>
  <rng:attribute name="order">
   <rng:ref name="teidata.count"/>
  </rng:attribute>
 </rng:optional>
 <rng:optional>
  <rng:attribute name="size">
   <rng:ref name="teidata.count"/>
  </rng:attribute>
 </rng:optional>
 <rng:group>
  <rng:optional>
   <rng:group>
    <rng:ref name="label"/>
    <rng:zeroOrMore>
     <rng:ref name="model.global"/>
    </rng:zeroOrMore>
   </rng:group>
  </rng:optional>
  <rng:choice>
   <rng:group>
    <rng:oneOrMore>
     <rng:group>
      <rng:ref name="node"/>
      <rng:zeroOrMore>
       <rng:ref name="model.global"/>
      </rng:zeroOrMore>
     </rng:group>
    </rng:oneOrMore>
    <rng:zeroOrMore>
     <rng:group>
      <rng:ref name="arc"/>
      <rng:zeroOrMore>
       <rng:ref name="model.global"/>
      </rng:zeroOrMore>
     </rng:group>
    </rng:zeroOrMore>
   </rng:group>
   <rng:group>
    <rng:oneOrMore>
     <rng:group>
      <rng:ref name="arc"/>
      <rng:zeroOrMore>
       <rng:ref name="model.global"/>
      </rng:zeroOrMore>
     </rng:group>
    </rng:oneOrMore>
    <rng:oneOrMore>
     <rng:group>
      <rng:ref name="node"/>
      <rng:zeroOrMore>
       <rng:ref name="model.global"/>
      </rng:zeroOrMore>
     </rng:group>
    </rng:oneOrMore>
   </rng:group>
  </rng:choice>
 </rng:group>
</rng:element>
element graph
{
   att.global.attributes,
   att.global.rendition.attributes,
   att.global.linking.attributes,
   att.global.analytic.attributes,
   att.global.facs.attributes,
   att.global.change.attributes,
   att.global.responsibility.attributes,
   att.global.source.attributes,
   att.typed.attribute.subtype,
   attribute type
   {
      "undirected"
    | "directed"
    | "transitionNetwork"
    | "transducer"
    | teidata.enumerated
   }?,
   attribute order { teidata.count }?,
   attribute size { teidata.count }?,
   (
      ( label, model.global* )?,
      (
         ( ( node, model.global* )+, ( arc, model.global* )* )
       | ( ( arc, model.global* )+, ( node, model.global* )+ )
      )
   )
}