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	9942659	This number locates the particular value within the data table; it is like an accession number in a conventional library.
Value	27,437	This is the data value itself.
Date(s) covered	1931	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	10025825	Greenwich MetB
Meaning (DDS cell reference)	CENSUS_EMPL:male/emp	Cell within nCube N_CENSUS_EMPL: Census Unemployment by Sex Dimension Variable Category 1 Sex Male 2 Census Unemployment In employment Universe: Occupied Persons
Table in census reports	EW1931OCC_M16	1931 Census of England and Wales, Occupations, Table 16 , 'Occupations of Males and Females, showing also total Operatives and the total Out of Work'
Column in census table	1	Column label from original table:   Males
Row in census table	4	Row label from original table:   Operatives (in work): Number
Status	P	Public. Visible in both graphics and tables.
Precision	E	Exact
Created by	occ_1931_lg_t	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.