Why Bland Altman plots should use X, not (X+Y)/2 when X is a reference method

This essay has been published in Statistics in Medicine. (Jan S. Krouwer: Why Bland-Altman plots should use X, not (Y+X)/2 when X is a reference method. Statistics in Medicine, 2008;27:778-780). It is no longer available on this web site.

The Excel simulation file is still available below. 

BASim

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