This is a preview. Log in through your library . Abstract The ratio of odds ratios in a 2 x 2 x 2 contingency table is applicable to both cohort and case-control studies as a measure of the ...

The methods of cross-ratios, equivalence classes and metrics that were introduced in a previous paper (Altham 1970) are extended to three further problems. First the interdependence of the rows, ...

I include the data import and library import commands at the start of each lesson so that the lessons are self-contained. Pandas has a very simple contingency table feature. Below, I specify the two ...