While at it, would it be worth mentioning in the NEWS for R 4.0.0 that
options 'stringsAsFactors' is being deprecated, e.g.
$ options(stringsAsFactors = TRUE)
Warning message:
In options(stringsAsFactors = TRUE) :
'options(stringsAsFactors = TRUE)' is deprecated and will be disabled
? Currently, the news only 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().
/Henrik
On Mon, Apr 13, 2020 at 5:23 AM Martin Maechler
<maech...@stat.math.ethz.ch> wrote:
>
> >>>>> Hugh Parsonage
> >>>>> on Mon, 13 Apr 2020 21:20:26 +1000 writes:
>
> > 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))
>
> In R-devel and R 4.0.0 alpha/beta, you have
>
> > options(stringsAsFactors = c(TRUE, FALSE))
> Error in options(stringsAsFactors = c(TRUE, FALSE)) :
> invalid value for 'stringsAsFactors'
>
>
> > default.stringsAsFactors() # correct error message
>
> Note that the default.stringsAsFactors() function is also
> deprecated, of course. Not "formally", in the sense that its
> use would give a deprecation warning {which would be *bad* as
> it's still used for the default argument e.g. of read.table()},
> but the help page (in R-devel and R 4.0.0 "pre-release")
> has been saying for a while now
>
> 1)
>
> Usage:
>
> data.frame( ......... )
>
> default.stringsAsFactors() # << this is deprecated !
> ^^^^^^^^^^^^^^^^^^^^^^^^^^
>
> and 2) in 'Details:'
>
> default.stringsAsFactors is a utility ............
> ........... ............ This function is *deprecated* now and will
> no longer be available in the future.
>
>
> and so it'd be a waste to change it unnecessarily.
> Martin
>
> > On Mon, 13 Apr 2020 at 18:02, Martin Maechler
> > <maech...@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
> >>
> >> ______________________________________________
> >> R-devel@r-project.org mailing list
> >> https://stat.ethz.ch/mailman/listinfo/r-devel
>
> ______________________________________________
> R-devel@r-project.org mailing list
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