From version 10.1
edited by Artur K.
on 2025/05/27 15:50
on 2025/05/27 15:50
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To version 11.3
edited by Elena Yasinovskaya
on 2025/06/17 14:33
on 2025/06/17 14:33
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... ... @@ -1,1 +1,1 @@ 1 -xwiki:XWiki.a rturkryazhev1 +xwiki:XWiki.elenasemanticproorg - Tags
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... ... @@ -1,0 +1,1 @@ 1 +Code|Code list|Data structure definition|Dimension|Hierarchical code|Hierarchical code list|Hierarchy|Measure|SDMX Information Model - Content
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... ... @@ -4,7 +4,7 @@ 4 4 5 5 == {{id name="_Toc371021"/}}6.1 Context == 6 6 7 -Some statistical systems create views of data based on a “cube” structure. In essence, a cube is an n-dimensional object where the value of each [[dimension>>doc:sdmx:Glossary.Dimension.WebHome]] can be derived from a [[hierarchical code list>>doc:sdmx:Glossary.Hierarchical code list.WebHome]]. The utility of such cube systems is that it is possible to “roll up” or “drill down” each of the [[hierarchy>>doc:sdmx:Glossary.Hierarchy.WebHome]] (% style="color:#e74c3c" %)levels(%%)for each of the [[dimensions>>doc:sdmx:Glossary.Dimension.WebHome]] to specify the(% style="color:#e74c3c" %)level(%%)of granularity required to give a “view” of the data – some [[dimensions>>doc:sdmx:Glossary.Dimension.WebHome]] may be rolled up, others may be drilled down. Such systems give a dynamic view of the data, with aggregated values for rolled up [[dimension>>doc:sdmx:Glossary.Dimension.WebHome]] positions. For example, the individual countries may be rolled up into an economic region such as the EU, or a geographical region such as Europe, whilst another [[dimension>>doc:sdmx:Glossary.Dimension.WebHome]], such as “type of road” may be drilled down to its lower(% style="color:#e74c3c" %)level(%%). The resulting [[measure>>doc:sdmx:Glossary.Measure.WebHome]] (such as “number of accidents”) would then be an aggregation of the value for each individual country for the specific type of road.7 +Some statistical systems create views of data based on a “cube” structure. In essence, a cube is an n-dimensional object where the value of each [[dimension>>doc:sdmx:Glossary.Dimension.WebHome]] can be derived from a [[hierarchical code list>>doc:sdmx:Glossary.Hierarchical code list.WebHome]]. The utility of such cube systems is that it is possible to “roll up” or “drill down” each of the [[hierarchy>>doc:sdmx:Glossary.Hierarchy.WebHome]] levels for each of the [[dimensions>>doc:sdmx:Glossary.Dimension.WebHome]] to specify the level of granularity required to give a “view” of the data – some [[dimensions>>doc:sdmx:Glossary.Dimension.WebHome]] may be rolled up, others may be drilled down. Such systems give a dynamic view of the data, with aggregated values for rolled up [[dimension>>doc:sdmx:Glossary.Dimension.WebHome]] positions. For example, the individual countries may be rolled up into an economic region such as the EU, or a geographical region such as Europe, whilst another [[dimension>>doc:sdmx:Glossary.Dimension.WebHome]], such as “type of road” may be drilled down to its lower level. The resulting [[measure>>doc:sdmx:Glossary.Measure.WebHome]] (such as “number of accidents”) would then be an aggregation of the value for each individual country for the specific type of road. 8 8 9 9 Such cube systems rely, not on simple [[code lists>>doc:sdmx:Glossary.Code list.WebHome]], but on [[hierarchical code>>doc:sdmx:Glossary.Hierarchical code.WebHome]] sets (see section 8). 10 10