> Would someone be kind enough to point me to a resource which > allows Deeming Regression analysis.? The stuff I have been > able to find just skirts around the issue. Help, please !! Another poster already mentioned our clinical statistics package, Analyse-It for Microsoft Excel. Analyse-It includes Deming regression, as well as Passing-Bablok method comparison, and bias plots. For more information, and to download a free 14-day evaluation, please visit http://www.analyse-it.com %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%