AUTOCORRELATION AND VISUAL MAP COMPLEXITY

One important element in the overall look of a quantitative map is the relationship between neighboring values as they appear on the map, i.e., the autocorrelation in the map based on the classes into which the values fall. Methods of calculating this relationship objectively include rank autocorrel...

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Published in:Annals of the Association of American Geographers 1975-06, Vol.65 (2), p.189-204
Main Author: OLSON, JUDY M.
Format: Article
Language:English
Subjects:
Autocorrelation
Checkerboards
Complexity
Correlations
Geography
Hypothetical maps
Lag
Map skills
Mathematical sequences
Musical intervals
Neighborhoods
Quantitative maps
Testing of subjects
Visual map complexity
Zero
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container_title Annals of the Association of American Geographers
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description One important element in the overall look of a quantitative map is the relationship between neighboring values as they appear on the map, i.e., the autocorrelation in the map based on the classes into which the values fall. Methods of calculating this relationship objectively include rank autocorrelation; proportions of identical neighbors; average differences between neighboring values; number of clusters; and a weighted "proportion''value which includes a contribution from every neighboring pair, the amount of contribution varying inversely with the differences between the paired values. The first lag relationships appear to be most meaningful in terms of the visual appearance of hypothetical blocks of data ("maps"). Some of these measures are related to the way in which subjects order the blocks according to "spatial complexity,''although checkerboard patterns in particular introduce differences between measured and subjective sequences.
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1467-8306
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recordid cdi_proquest_journals_1296229323
source JSTOR Archival Journals and Primary Sources Collection
subjects Autocorrelation
Checkerboards
Complexity
Correlations
Geography
Hypothetical maps
Lag
Map skills
Mathematical sequences
Musical intervals
Neighborhoods
Quantitative maps
Testing of subjects
Visual map complexity
Zero
title AUTOCORRELATION AND VISUAL MAP COMPLEXITY
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