CRAN_Status_Badge R-CMD-check Downloads


ludic is a package which implements Probabilistic Record Linkage methods that rely on the use of diagnosis codes only, in the absence of direct identifiers. On top of the CRAN help files and the function recordLink(), the following article explains what ludic is about:

Hejblum BP, Weber G, Liao KP, Palmer N, Churchill S, Szolovits P, Murphy S, Kohane I, Cai T (2019). Probabilistic Record Linkage of De-Identified Research Datasets Using Diagnosis Codes. Scientific Data, 6:180298. <doi: 10.1038/sdata.2018.298>.

ludic also implements an automated testing framework avoiding to select a given threshold for claiming a match in function atlas().

Zhang HG, Hejblum BP, Weber G, Palmer N, Churchill S, Szolovits P, Murphy S, Liao KP, Kohane I and Cai T (2021). ATLAS: An automated association test using probabilistically linked health records with application to genetic studies. JAMIA, in press. <doi: 10.1101/2021.05.02.21256490>.


The easiest way to get ludic is to install it from CRAN:


or alternatively you can get the development version from GitHub:


– Boris Hejblum