Miscellaneous tools

Open-source toolkit for analyzing and visualizing challenge results

ChallengeR is an R package for analyzing and visualizing challenge results in the field of biomedical image analysis and beyond intuitive way to gain important insights into the relative and absolute performance of algorithms.
For details see:
Wiesenfarth M, Reinke A, Landman BA, Eisenmann M, Saiz LA, Cardoso MJ, Maier-Hein L, Kopp-Schneider A. Methods and open-source toolkit for analyzing and visualizing challenge results. Sci Rep. 2021 Jan 27;11(1):2369. Doi: 10.1038/s41598-021-82017-6.

Cochran-Armitage Test for trend
The WebApp CATrend computes the one-sided p-values of the Cochran-Armitage trend test for the asymptotic and the exact conditional test. The Cochran-Armitage Test for trend is used in the analysis of 2 x k contingency tables with k ordered categories. It compares the null hypothesis of equal proportions in all k categories to the alternative of ordered proportions. Details, also about numerical calculation can be found in the WebApp. A corresponding R package (CATTexact) is available.

Clustering and visualization of mixed-type data
CluMix is an R package that provides utilities for clustering subjects and variables with mixed data types. The main feature is the creation of a mixed-data heatmap.
For details see:
Hummel M, Edelmann D, Kopp-Schneider A. Clustering of samples and variables with mixed-type data. PLoS One. 2017 Nov 28;12(11):e0188274. doi: 10.1371/journal.pone.0188274. eCollection 2017.