code: public List<JAXBElement<? extends AbstractPositionalAccuracyType>> get_PositionalAccuracy() {
          if (_PositionalAccuracy == null) {
              _PositionalAccuracy = new ArrayList<JAXBElement<? extends AbstractPositionalAccuracyType>>();
          }
          return this._PositionalAccuracy;
      }
docs: Unordered set of estimates of the impact of this coordinate operation on point position accuracy. Gives position error estimates for target coordinates of this coordinate operation, assuming no errors in source coordinates. Gets the value of the positionalAccuracy property.
  
  <p>
  This accessor method returns a reference to the live list,
  not a snapshot. Therefore any modification you make to the
  returned list will be present inside the JAXB object.
  This is why there is not a <CODE>set</CODE> method for the positionalAccuracy property.
  
  <p>
  For example, to add a new item, do as follows:
  <pre>
  get_PositionalAccuracy().add(newItem);
  </pre>
  
  
  <p>
  Objects of the following type(s) are allowed in the list
  {@link JAXBElement }{@code <}{@link CovarianceMatrixType }{@code >}
  {@link JAXBElement }{@code <}{@link AbsoluteExternalPositionalAccuracyType }{@code >}
  {@link JAXBElement }{@code <}{@link RelativeInternalPositionalAccuracyType }{@code >}
  {@link JAXBElement }{@code <}{@link AbstractPositionalAccuracyType }{@code >}