Fix issue with setting attributes on NULL.
- local OS X install, R 4.0.0
- ubuntu 16.04 (on travis-ci), R 4.0.0
- win-builder (devel and release)
0 errors | 0 warnings | 0 notes
R CMD check ran successfully on the nine reverse dependencies: PML, geoSpectral, rtimicropem, AUCell, trelliscopejs, SeqSQC, esetVis, xplorerr, viromeBrowser.