stringsAsFactors
Further, in addition to the `val <- FALSE` patch a few hours ago by
Martin, the line after should also be changed
- if(!is.logical(val) || is.na(val) || length(val) != 1L)
+ if(!is.logical(val) || length(val) != 1L || is.na(val))
## Consider
Sys.setenv("_R_CHECK_LENGTH_1_LOGIC2_" = "TRUE")
options(stringsAsFactors = c(TRUE, FALSE))
default.stringsAsFactors() # correct error message
On Mon, 13 Apr 2020 at 18:02, Martin Maechler
<maechler at stat.math.ethz.ch> wrote:
Duncan Murdoch
on Sun, 12 Apr 2020 08:57:14 -0400 writes:
> The NEWS for R 4.0.0 says "R now uses a stringsAsFactors = FALSE
> default, and hence by default no longer converts strings to factors in
> calls to data.frame() and read.table()."
> This seems to have been implemented by setting options(stringsAsFactors
> = FALSE) in the main R profile. However, setting
> options(stringsAsFactors = NULL)
> reverts to the same behavior as the old options(stringsAsFactors =
> TRUE). Is this intentional?
No! Thanks a lot for testing R 4.0.0 alpha/beta, noticing and alerting us about it. This will be changed ASAP. ... and it will benefit the whole R user community if quite a few good R users (as most readers of 'R-devel') would start using 'R 4.0.0 beta' routinely now --- thanks a lot in advance! Martin
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