bands-are-looked-up

Date: 2026-09-10. Status: implemented.

Decision. Every band in the output is copied from a published file. No band is calculated from a rank. One exception, computed-weighted-domain-bands (1 October 2026), labelled computed everywhere.

Reason. The publisher's value is the auditable value. Earlier formula-based validation was later removed by trust-the-sources.

Evidence. SIMD_Plan_Gap_Closure.md section 2; halfup rule for 2001 zones and ceil rule for 2011 zones each reproduce the published bands with zero mismatches.

Columns (201): simd2004_access_domain_decile, simd2004_access_domain_quintile, simd2004_access_domain_vigintile, simd2004_education_domain_decile, simd2004_education_domain_quintile, simd2004_education_domain_vigintile, simd2004_employment_domain_decile, simd2004_employment_domain_quintile, simd2004_employment_domain_vigintile, simd2004_health_domain_decile, simd2004_health_domain_quintile, simd2004_health_domain_vigintile, simd2004_housing_domain_decile, simd2004_housing_domain_quintile, simd2004_housing_domain_vigintile, simd2004_income_domain_decile, simd2004_income_domain_quintile, simd2004_income_domain_vigintile, simd2004_least15pc, simd2004_most15pc, simd2004_pw_ca_decile, simd2004_pw_ca_quintile, simd2004_pw_hb_decile, simd2004_pw_hb_quintile, simd2004_pw_hscp_decile, simd2004_pw_hscp_quintile, simd2004_pw_scotland_decile, simd2004_pw_scotland_quintile, simd2004_uw_scotland_decile, simd2004_uw_scotland_quintile, simd2004_uw_scotland_vigintile, simd2006_access_domain_decile, simd2006_access_domain_quintile, simd2006_access_domain_vigintile, simd2006_crime_domain_decile, simd2006_crime_domain_quintile, simd2006_crime_domain_vigintile, simd2006_education_domain_decile, simd2006_education_domain_quintile, simd2006_education_domain_vigintile, simd2006_employment_domain_decile, simd2006_employment_domain_quintile, simd2006_employment_domain_vigintile, simd2006_health_domain_decile, simd2006_health_domain_quintile, simd2006_health_domain_vigintile, simd2006_housing_domain_decile, simd2006_housing_domain_quintile, simd2006_housing_domain_vigintile, simd2006_income_domain_decile, simd2006_income_domain_quintile, simd2006_income_domain_vigintile, simd2006_least15pc, simd2006_most15pc, simd2006_pw_ca_decile, simd2006_pw_ca_quintile, simd2006_pw_hb_decile, simd2006_pw_hb_quintile, simd2006_pw_hscp_decile, simd2006_pw_hscp_quintile, simd2006_pw_scotland_decile, simd2006_pw_scotland_quintile, simd2006_uw_scotland_decile, simd2006_uw_scotland_quintile, simd2006_uw_scotland_vigintile, simd2009v2_access_domain_decile, simd2009v2_access_domain_quintile, simd2009v2_access_domain_vigintile, simd2009v2_crime_domain_decile, simd2009v2_crime_domain_quintile, simd2009v2_crime_domain_vigintile, simd2009v2_education_domain_decile, simd2009v2_education_domain_quintile, simd2009v2_education_domain_vigintile, simd2009v2_employment_domain_decile, simd2009v2_employment_domain_quintile, simd2009v2_employment_domain_vigintile, simd2009v2_health_domain_decile, simd2009v2_health_domain_quintile, simd2009v2_health_domain_vigintile, simd2009v2_housing_domain_decile, simd2009v2_housing_domain_quintile, simd2009v2_housing_domain_vigintile, simd2009v2_income_domain_decile, simd2009v2_income_domain_quintile, simd2009v2_income_domain_vigintile, simd2009v2_least15pc, simd2009v2_most15pc, simd2009v2_pw_ca_decile, simd2009v2_pw_ca_quintile, simd2009v2_pw_hb_decile, simd2009v2_pw_hb_quintile, simd2009v2_pw_hscp_decile, simd2009v2_pw_hscp_quintile, simd2009v2_pw_scotland_decile, simd2009v2_pw_scotland_quintile, simd2009v2_uw_scotland_decile, simd2009v2_uw_scotland_quintile, simd2009v2_uw_scotland_vigintile, simd2012_access_domain_decile, simd2012_access_domain_quintile, simd2012_access_domain_vigintile, simd2012_crime_domain_decile, simd2012_crime_domain_quintile, simd2012_crime_domain_vigintile, simd2012_education_domain_decile, simd2012_education_domain_quintile, simd2012_education_domain_vigintile, simd2012_employment_domain_decile, simd2012_employment_domain_quintile, simd2012_employment_domain_vigintile, simd2012_health_domain_decile, simd2012_health_domain_quintile, simd2012_health_domain_vigintile, simd2012_housing_domain_decile, simd2012_housing_domain_quintile, simd2012_housing_domain_vigintile, simd2012_income_domain_decile, simd2012_income_domain_quintile, simd2012_income_domain_vigintile, simd2012_least15pc, simd2012_most15pc, simd2012_pw_ca_decile, simd2012_pw_ca_quintile, simd2012_pw_hb_decile, simd2012_pw_hb_quintile, simd2012_pw_hscp_decile, simd2012_pw_hscp_quintile, simd2012_pw_scotland_decile, simd2012_pw_scotland_quintile, simd2012_uw_scotland_decile, simd2012_uw_scotland_quintile, simd2012_uw_scotland_vigintile, simd2016_access_domain_decile, simd2016_access_domain_quintile, simd2016_access_domain_vigintile, simd2016_crime_domain_decile, simd2016_crime_domain_quintile, simd2016_crime_domain_vigintile, simd2016_education_domain_decile, simd2016_education_domain_quintile, simd2016_education_domain_vigintile, simd2016_employment_domain_decile, simd2016_employment_domain_quintile, simd2016_employment_domain_vigintile, simd2016_health_domain_decile, simd2016_health_domain_quintile, simd2016_health_domain_vigintile, simd2016_housing_domain_decile, simd2016_housing_domain_quintile, simd2016_housing_domain_vigintile, simd2016_income_domain_decile, simd2016_income_domain_quintile, simd2016_income_domain_vigintile, simd2016_least15pc, simd2016_most15pc, simd2016_pw_ca_decile, simd2016_pw_ca_quintile, simd2016_pw_hb_decile, simd2016_pw_hb_quintile, simd2016_pw_hscp_decile, simd2016_pw_hscp_quintile, simd2016_pw_scotland_decile, simd2016_pw_scotland_quintile, simd2016_uw_scotland_decile, simd2016_uw_scotland_quintile, simd2016_uw_scotland_vigintile, simd2020v2_access_domain_decile, simd2020v2_access_domain_quintile, simd2020v2_access_domain_vigintile, simd2020v2_crime_domain_decile, simd2020v2_crime_domain_quintile, simd2020v2_crime_domain_vigintile, simd2020v2_education_domain_decile, simd2020v2_education_domain_quintile, simd2020v2_education_domain_vigintile, simd2020v2_employment_domain_decile, simd2020v2_employment_domain_quintile, simd2020v2_employment_domain_vigintile, simd2020v2_health_domain_decile, simd2020v2_health_domain_quintile, simd2020v2_health_domain_vigintile, simd2020v2_housing_domain_decile, simd2020v2_housing_domain_quintile, simd2020v2_housing_domain_vigintile, simd2020v2_income_domain_decile, simd2020v2_income_domain_quintile, simd2020v2_income_domain_vigintile, simd2020v2_least15pc, simd2020v2_most15pc, simd2020v2_pw_ca_decile, simd2020v2_pw_ca_quintile, simd2020v2_pw_hb_decile, simd2020v2_pw_hb_quintile, simd2020v2_pw_hscp_decile, simd2020v2_pw_hscp_quintile, simd2020v2_pw_scotland_decile, simd2020v2_pw_scotland_quintile, simd2020v2_uw_scotland_decile, simd2020v2_uw_scotland_quintile, simd2020v2_uw_scotland_vigintile