stevenh@56: PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
stevenh@56: PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
stevenh@56: PREFIX owl: <http://www.w3.org/2002/07/owl#>
stevenh@56: PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>
stevenh@56: PREFIX abc: <http://example.org/abc#>
stevenh@56: PREFIX seq: <http://example.org/seq#>
stevenh@56: PREFIX sia: <http://example.org/sia#>
stevenh@56: 
stevenh@56: INSERT { ?vte sia:dimVal _:dv .
stevenh@56: 			_:dv sia:dimension ?dim;
stevenh@56: 			     sia:value ?val}
stevenh@56: WHERE
stevenh@56: {
stevenh@56: 	?vte rdf:type sia:VectorTableElement .
stevenh@56: 	?vte sia:fromDatapoint ?datapoint1 .
stevenh@56: 	?vte sia:toDatapoint ?datapoint2 .
stevenh@56: 	?datapoint1 sia:dimVal ?dv1 .
stevenh@56: 	?dv1 sia:dimension ?dim .
stevenh@56: 	?dv1 sia:value ?val1 .
stevenh@56: 	?datapoint2 sia:dimVal ?dv2 .
stevenh@56: 	?dv2 sia:dimension ?dim .
stevenh@56: 	?dv2 sia:value ?val2 .
stevenh@63: 	FILTER (( datatype(?val2) = xsd:double ) && ( datatype(?val1) = xsd:double ))
stevenh@56: 	BIND (?val2 - ?val1 AS ?val)
stevenh@56: }