Estimating ratio scale values when units
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Eng U. Choo; William C. Wedley
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Article
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2010
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Elsevier Science
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English
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## a b s t r a c t Multiplication of a ratio scale by a positive constant (a similarity transformation) causes the values to change to a different unit of measure without upsetting relative ratios between objects. Because the relative ratios of any two objects are uniquely represented, a column ve