[R] do.call in 2.3.0 vers 2.3.x

[Dieter Menne]

Dear R-Core,

after switching to 2.3.0, all my trusted do.call constructs that worked in
2.2 and earlier fail. I noted that changes were introduced to do.call, but I
could not find out how these relate to my problem.

The following example works in 2.2 and earlier, but fails because rownames
are partially NA. I can correct this by manually adding row names, but it's
a bit of work to check this in all my code.

Dieter

------

wby = by(warpbreaks[, 1:2], warpbreaks$tension,
  function(x) {
    data.frame(breaks=mean(x$breaks),var=var(x$breaks))
  }
  )

cd = do.call("rbind",wby)
row.names(cd)
cd

---- Output in 2.3.0
> row.names(cd)
[1] NA    "NA1" "NA2"
> cd
Error in data.frame(breaks = c("36.38889", "26.38889", "21.66667"), var =
c("270.48693",  :
        row names contain missing values
>

----
platform       i386-pc-mingw32
arch           i386
os             mingw32
system         i386, mingw32
status
major          2
minor          3.0
year           2006
month          04
day            24
svn rev        37909
language       R
version.string Version 2.3.0 (2006-04-24)