Canadian Journal of Statistics

Age–period–cohort analysis in the 1870s: Diagrams, stereograms, and the basic differential equation

Journal Article


The period 1868–1880 saw a dramatic development in analytical and graphical descriptions of mortality, varying with time and age; this took place almost entirely in the German language. This report attempts a survey of these developments with brief notes on other graphical representations and on how they evolved into the Lexis diagram and the McKendrick–Von Foerster equation of the present time. The Canadian Journal of Statistics 39: 405–420; 2011 © 2011 Statistical Society of Canada

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