When a library is loaded messages such as these are displayed:
The following object is masked from ‘package:base’: norm The following object is masked from ‘package:NADA’: cor What do I read to understand just what being masked means? Rich ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.