>That said, I don't think it's normal for a "software bug" to result in such an egregious error as to require a retraction of the study. I'd like to know why th

>That said, I don't think it's normal for a "software bug" to result in such an egregious error as to require a retraction of the study. I'd like to know why the peer review process failed to detect the problem. Only because most papers never get the work checked at that level. Software bugs causing errors in studies is extremely common. There's a reason a tiny tiny fraction of researchers share their code without kicking and screaming, and it's not because they'll be scooped on their next paper if they do. (I'm slightly jaded here)