On 03/02/2019 12:04 p.m., Radford Neal wrote:
While doing some performance testing with the new version of pqR (see
pqR-project.org), I've encountered an extreme, and quite unnecessary,
inefficiency in the current R Core implementation of R, which I think
you might want to correct.
The inefficie
While doing some performance testing with the new version of pqR (see
pqR-project.org), I've encountered an extreme, and quite unnecessary,
inefficiency in the current R Core implementation of R, which I think
you might want to correct.
The inefficiency is in access to columns of a data frame, as
