Package 'apt' has been archived on CRAN for more than 60 days

[kurthornik]

Package apt is currently listed in CRAN Task View Econometrics but the package has actually been archived for more than 60 days on CRAN. Often this indicates that the package is currently not sufficiently actively maintained and should be excluded from the task view.

Alternatively, you might also consider reaching out to the authors of the package and encourage (or even help) them to bring the package back to CRAN. See the section on CRAN package archivals in the maintenance guidelines for more details.

In any case, the situation should be resolved in the next four weeks. If the package does not seem to be brought back to CRAN, please exclude it from the task view.

[zeileis]

This is by the same author as the package erer which was also archived, see #27. As apt depends on `erer, the latter would need to be resurrected first.