Dear R-devel,
The median() function assigns a name, "NA", to its return value if the
return value is NA and the input vector has names, otherwise the names attribute
is NULL. This looks strange and inconsistent with the behavior of mean().
This inconsistency becomes a problem when median() is used inside user code that
relies on consistent naming convention.
Thanks,
Vadim
> foo <- c(x=as.numeric(NA), y=as.numeric(NA), z=as.numeric(NA))
> names(mean(foo))
NULL> names(median(foo))
[1] NA
## no names in input> foo <- rep(as.numeric(NA), 3)
> names(median(foo))
NULL
> version
_
platform i386-pc-mingw32
arch i386
os mingw32
system i386, mingw32
status
major 2
minor 7.1
year 2008
month 06
day 23
svn rev 45970
language R
version.string R version 2.7.1 (2008-06-23)>
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