https://timeseriesreasoning.com/contents/r-squared-adjusted-r-squared-pseudo-r-squared/ For nominal Y: http://www.ncbi.nlm.nih.gov/pubmed/?term=steyerberg+calster+discrimination ---------------- Ewout 2015-04-14 I was trying to refer to the debate on evaluation of markers, specifically incremental value, where reclassification has come up as a popular approach. Pencina’s SM 2008 paper has 2507 citations by now .. http://www.ncbi.nlm.nih.gov/pubmed/17569110 The NRI has been severely criticized by Hilden http://www.ncbi.nlm.nih.gov/pubmed/23553436 and Pepe http://www.ncbi.nlm.nih.gov/pubmed/?term=nri+misleading and put in a perspecive by Leening, Van Calster http://www.ncbi.nlm.nih.gov/pubmed/24592497 http://www.ncbi.nlm.nih.gov/pubmed/23313931 but again criticized by Vickers http://www.ncbi.nlm.nih.gov/pubmed/24592500 I wrote an overview after Mike Kattan’s symposium in Cleveland 2008, which you reviewed I think, where many of the controversies came up already: http://www.ncbi.nlm.nih.gov/pubmed/20010215 This now actually is one of my popular papers in terms of citations ---------------- Simple example of problem with NRI https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4615606/ -------------- Problems with my claim of improper scoring rule https://arxiv.org/pdf/1806.07144.pdf