[Rd] stringsAsFactors

[peter dalgaard]

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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-- 
Peter Dalgaard, Professor,
Center for Statistics, Copenhagen Business School
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