package `methods' has persistent effects even if detached (PR#1715)

[ripley@stats.ox.ac.uk]

This came from an error in reg-tests-1.R

> x <- as.data.frame(x=I("C"))[[1]]
> class(x)
[1] "AsIs"
> library(methods)
> detach("package:methods")
> search()
[1] ".GlobalEnv"    "package:ctest" "Autoloads"     "package:base"
> x <- as.data.frame(x=I("C"))[[1]]
> class(x)
[1] "AsIs"      "character"

My reading is that this should not happen.

-- 
Brian D. Ripley,                  ripley@stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272860 (secr)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595


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