RMW tabulates single variant score statistics, which summarize evidence for association, together with covariance matrices, which summarize linkage disequilibrium relationships among variants (see our online documentation for methods http://genome.sph.umich.edu/wiki/RAREMETALWORKER_METHOD). RMW also tabulates quality control statistics for traits and covariates (mean, standard deviation and number of phenotyped samples) and marker genotypes (Hardy–Weinberg Equilibrium P-values and genotype missing rate). These can be used to identify problematic markers and studies during meta-analysis.
