> * Simon Urbanek <fvzba.heon...@e-cebwrpg.bet> [2013-09-10 18:38:29 -0400]:
>
> On Sep 10, 2013, at 12:56 PM, Sam Steingold wrote:
>
>>> * Dirk Eddelbuettel <r...@qrovna.bet> [2013-09-10 10:21:33 -0500]:
>>>
>>> On 10 September 2013 at 10:32, Sam Steingold wrote:
>>> | (summary.default): show the vector length in addition to quantiles
>>> |
>>> |
>>> | diff -u -i -p -F '^(def' -b -w -B
>>> /home/sds/src/R-3.0.1/src/library/base/R/summary.R.old
>>> /home/sds/src/R-3.0.1/src/library/base/R/summary.R
>>> | --- /home/sds/src/R-3.0.1/src/library/base/R/summary.R.old
>>> 2013-03-05 18:02:33.000000000 -0500
>>> | +++ /home/sds/src/R-3.0.1/src/library/base/R/summary.R 2013-09-10
>>> 10:19:02.682946339 -0400
>>> | @@ -39,6 +39,7 @@ summary.default <-
>>> | qq <- stats::quantile(object)
>>> | qq <- signif(c(qq[1L:3L], mean(object), qq[4L:5L]), digits)
>>> | names(qq) <- c("Min.", "1st Qu.", "Median", "Mean", "3rd Qu.", "Max.")
>>> | + qq <- c(qq,"Length" = length(object))
>>> | if(any(nas))
>>> | c(qq, "NA's" = sum(nas))
>>> | else qq
>>> |
>>> | Diff finished. Tue Sep 10 10:19:40 2013
>>>
>>> Base R functions are rarely modified; others may have expectations on
>>> summary() returning the six values it returns.
>>
>> Note that summary sometimes returns 5 values (when there no "NA's").
>> It is clearly wrong to rely on the details of the return value of a UI
>> function.
>>
>
> .. except that summary() is not a UI function. It is used to create
> summary *objects*, not some UI output. Although sometimes users like to
> print such summary objects, that is not the task of summary(). There are
> quite common programmatic uses of summary() -- one prominent one that
> comes to my mind is in conjunction with connections.
you mean, saving to files?
> (Not that any of this has anything to do with the original question ... )
well, it does: what are the "common programmatic uses of summary" which
rely on its number of values?
--
Sam Steingold (http://sds.podval.org/) on Ubuntu 13.04 (raring) X 11.0.11303000
http://www.childpsy.net/ http://truepeace.org http://www.memritv.org
http://honestreporting.com http://camera.org http://americancensorship.org
To understand recursion, one has to understand recursion first.
______________________________________________
R-devel@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-devel
