[Rd] stringsAsFactors
peter dalgaard
pd@|gd @end|ng |rom gm@||@com
Mon Apr 13 13:57:43 CEST 2020
In both cases, that is as it should be.
1. expand.grid() (sic) has its main application in factorial designs, for which you want a set of factors
2. tables are factorial structures by nature. Converting factors to character would lose level order (true for 1. as well, actually)
- pd
> On 13 Apr 2020, at 13:01 , Karolis Koncevičius <karolis.koncevicius using gmail.com> wrote:
>
> Hello,
>
> I also want to report 2 missed cases of stringsAsFactors=TRUE in base:
>
> 1. grid.expand() still uses hard stringsAsFactors=TRUE in its arguments.
> 2. as.data.frame.table() also keeps factors after conversion from table.
>
>>>>>>> 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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>
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--
Peter Dalgaard, Professor,
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