blog.r-project.org/2025/12/17/r...
blog.r-project.org/2025/12/17/r...
The key difference from LINPACK (in src/appl/dqrdc2.f) is that it pivots only when really needed, so that computing sequential "this beta adjusted for the previous ones" is more straightforward.
The key difference from LINPACK (in src/appl/dqrdc2.f) is that it pivots only when really needed, so that computing sequential "this beta adjusted for the previous ones" is more straightforward.