>>>>> 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
>>
>> ______________________________________________
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