Evaluation of Methods for Classifying Epidemiological Data on Choropleth Maps in Series

Cynthia A. Brewer , Department of Geography , Pennsylvania State University

Linda Pickle, Statistical Research and Applications Branch , National Cancer Institute

Annals of the Association of American Geographers , 92(4), 2002, pp. 662-681


This web page provides links to a complete set of maps used in the experiment described here. The majority of the page presents tables with map links for nine series of four maps. Other resources offered are links to the article, experiment questions asked, and an example map series. A summary of the classification methods tested is also available.



Maps used in the Brewer/Pickle Experiments


Series 1

Each individual map is in pdf format and is approximately 150 KB.
Click here to download the entire set of Series 1 pdfs in zip format (4 MB).


 		Hybrid
Equal Interval
(EI)		 Quantile (QN) Box Plot
Based
(BP)		 Standard Deviation (SD) Natural Breaks
Jenks
(NB)		 Minimum Boundary
Error
(BE)		 Shared Area
(SA)

Lung Cancer White Male

(WM_LUNG_UL)

001

002

003

004

005

006

007

Lung Cancer Black Male

(BM_LUNG_UR)

008

009

010

011

012

013

014

Lung Cancer White Female

(WF_LUNG_LL)

015

016

017

018

019

020

021

Lung Cancer Black Female

(BF_LUNG_LR)

022

023

024

025

026

027

028




Series 2

Each individual map is in pdf format and is approximately 150 KB.
Click here to download the entire set of Series 2 pdfs in zip format (4 MB).


 		Hybrid
Equal Interval
(EI)		 Quantile (QN) Box Plot
Based
(BP)		 Standard Deviation (SD) Natural Breaks
Jenks
(NB)		 Minimum Boundary
Error
(BE)		 Shared Area
(SA)

HIV
White Male

(WM_HIV_UL)

029

030

031

032

033

034

035

HIV
Black Male

(BM_HIV_UR)

036

037

038

039

040

041

042

Unintentional Injury
White Male

(WM_UI_LL)

043

044

045

046

047

048

049

Unintentional Injury
Black Male

(BM_UI_LR)

050

051

052

053

054

055

056


Series 3

Each individual map is in pdf format and is approximately 150 KB.
Click here to download the entire set of Series 3 pdfs in zip format (4 MB).


 		Hybrid
Equal Interval
(EI)		 Quantile (QN) Box Plot
Based
(BP)		 Standard Deviation (SD) Natural Breaks
Jenks
(NB)		 Minimum Boundary
Error
(BE)		 Shared Area
(SA)

All Causes
White Female

(WF_ALL_UL)

057

058

059

060

061

062

063

Heart Disease
White Female

(WF_HD_UR)

064

065

066

067

068

069

070

All Cancers
White Female

(WF_AC_LL)

071

072

073

074

075

076

077

Stroke
White Female

(WF_ST_LR)

078

079

080

081

082

083

084


Series 4

Each individual map is in pdf format and is approximately 150 KB.
Click here to download the entire set of Series 4 pdfs in zip format (4 MB).


 		Hybrid
Equal Interval
(EI)		 Quantile (QN) Box Plot Based
(BP)		 Standard Deviation (SD) Natural Breaks
Jenks
(NB)		 Minimum Boundary (BE) Shared
Area
(SA)

Motor Vehicle Injuries
White Male

(WM_MV_UL)

085

086

087

088

089

090

091

Suicide
White Male

(WM_SU_UR)

092

093

094

095

096

097

098

Homicide
White Male

(WM_HO_LL)

099

100

101

102

103

104

105

Percent
Urban

(PCT_UR_LR)

106

107

108

109

110

111

112


Series 5

Each individual HSA map is in pdf format and is approximately 150 KB.
Each individual county map is in pdf format and is approximately 710 KB.
Click here to download the entire set of Series 5 pdfs in zip format (15 MB).


 		Hybrid
Equal Interval
(EI)		 Quantile (QN) Box Plot Based
(BP)		 Standard Deviation (SD) Natural Breaks
Jenks
(NB)		 Minimum Boundary
Error
(BE)		 Shared
Area
(SA)

Breast Cancer
White Female

(WF_BC_UL)

113

114

115

116

117

118

119

Median Household Income by County

(MED_INC_UR)

120

121

122

123

124

125

126

Percent College Educated by County

(COLL_ED_LL)

127

128

129

130

131

132

133

Percent Urban by County

(PCT_UR_CO_LR)

134

135

136

137

138

139

140


Series 6

Each individual map is in pdf format and is approximately 150 KB.
Click here to download the entire set of Series 6 pdfs in zip format (4 MB).