Documentation for individual data value

Behind the Vision of Britain web site is a true data library, a collection of individual statistics each with its own metadata to tell users what it means. These metadata also control how the system visualises statistical data through graphs and maps. This is what we know about the particular data value you selected:

Attribute Value Meaning
Identifier 1655981 This number locates the particular value within the data table; it is like an accession number in a conventional library.
Value 30 This is the data value itself.
Date(s) covered 1971 We store dates within a date object, which can hold anything from a simple year value, for a census, to a period defined by two calendar dates.
Administrative area covered 10119339 Carmarthen MB
Meaning (DDS cell reference) SEG_M:13 Cell within nCube N_SEG_M: Socio-Economic Group (males only)
DimensionVariableCategory
1 Socio-Economic Groups SEG 13: Farmers - employers and managers
Universe: All Males of Working Age
Source CEN Census of Population
Status D Derived. This usually indicates that the value was generated from raw data using the mappings defined in the DDS. They are sometimes suppressed from table listings.
Precision E Exact
Created by add_derived_1 This is the name of our script which inserted this data value into the main data table. For non-derived values, this is usually done by copying data values across from our more conventional GBHDB database, and the scripts are usually named after the table in GBHDB they copy data from.

This table lists, in its "value" column, a single row from our data table. The values are mostly identifiers and codes which are given meaning by our main sub-systems, and the "meaning" column reaches into these to tell you more.


How to reference this page:

GB Historical GIS / University of Portsmouth, Vision of Britain | Context for data value | The meaning of 30, A Vision of Britain through Time.

URL: http://www.visionofbritain.org.uk/datavalue/1655981

Date accessed: 27th April 2017