Stata Software
mimix – multiply imputes missing numerical outcomes for a longitudinal trial with protocol deviation under distinct reference group (typically treatment arm) assumptions, following the general algorithm of Carpenter, Roger and Kenward (Journal of Biopharmaceutical Statistics, 2013). Imputation options include randomised arm Missing-At-Random, Jump to Reference, Last Mean Carried Forward, Copy Increments in Reference and Copy Reference.
Available for download at: mimix
To install from within stata type: ssc install mimix