Encodes several methods for performing Mendelian randomization analyses with summarized data. Summarized data on genetic associations with the exposure and with the outcome can be obtained from large consortia. These data can be used for obtaining causal estimates using instrumental variable methods.
Penalization of weights altered to correspond to Rees et al 2017 (submitted): penalization is now about the median estimate, only variants with heterogeneity p-value less than 0.01 are penalized.
Minor fix on extract.pheno.csv function that was making SNPs out of order. Minor fix on p-values from mr_ivw and mr_egger functions.
New functionality on mr_plot command: static graph (new options "interactive" and "labels"). New command mr_maxlik: implements maximum-likelihood estimation method. Bug fixes on mr_allmethods command.