# lapply( *, names) -- bug ?!

**Martin Maechler
**
Martin Maechler <maechler@stat.math.ethz.ch>

*Fri, 23 Jul 1999 09:15:03 +0200*

This came on S-news
The more direct test being
sapply(c(a=1,b=2), names)
Problem:
R ("all" versions)
behaves the same as S+5.1, which is wrong IMO.
{since some might disagree, I didn't yet post to R-bugs ..}
------- Start of forwarded message -------
Date: Thu, 22 Jul 1999 23:14:57 -0230
From: "Paul Y. Peng" <ypeng@math.mun.ca>
To: s-news <s-news@wubios.wustl.edu>
Subject: [S] Feature or bug?
In S-PLUS 3.3 (DEC Alpha) and S-PLUS 2000,
>* z <- c("a"=1, "b"=2)
*>* lapply(z, function(x)names(x))
*$a:
[1] "a"
$b:
[1] "b"
But in S-PLUS 5.1 (Linux),
>* z <- c("a"=1, "b"=2)
*>* lapply(z, function(x)names(x))
*$a:
NULL
$b:
NULL
Is this a new feature of S-PLUS 5? Do I miss anything in
S-PLUS 5? Thank you for your help.
------- End of forwarded message -------
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