LINK-FUNCTION

<xs:simpleType name="LINK-FUNCTION">
  <xs:restriction base="xs:string">
    <xs:enumeration value="cloglog"/>
    <xs:enumeration value="identity"/>
    <xs:enumeration value="log"/>
    <xs:enumeration value="logc"/>
    <xs:enumeration value="logit"/>
    <xs:enumeration value="loglog"/>
    <xs:enumeration value="negbin"/>
    <xs:enumeration value="oddspower"/>
    <xs:enumeration value="power"/>
    <xs:enumeration value="probit"/>
  </xs:restriction>
</xs:simpleType>