>>>>> Fischer, Bernd <b.fisc...@dkfz-heidelberg.de>
>>>>> on Wed, 29 Apr 2015 20:22:44 +0200 writes:
> Dear all,
> I noticed that the dimnames returned by apply are different in the new
release.
> In the following example. The returned row-names are c(“S”,”T”), but
shouldn’t they be c(“X”,”Y”) as in the old release?
Not quite : They were c("X.S", "Y.T")
Still
.
..
...
....
.....
......
............ ---> Tada !!
Congratulations on your finding the first "bad" bug in R 3.2.0 !
"bad": a true regression, i.e., a bug not present in earlier versions of R.
I'm almost sure it is my fault, and I'm going to look into fixing it!
For the curious ones: It was introduced with the following
new feature (which implied fixing apply()'s treatment of named dimnames):
• apply(m, 2, identity) is now the same as the matrix m when it has
_named_ row names.
> Best,
> Bernd
Thank you, Bernd, for the report!
Martin Maechler,
ETH Zurich
>> X = array(1:8, dim=c(4,2))
>> dimnames(X) = list(c("A","B","C","D"),c("S","T"))
>> apply(X, 1, function(x) { c(X=x[1]*5,Y=x[2]*5) } )
> A B C D
> S 5 10 15 20
> T 25 30 35 40
>> sessionInfo()
> R version 3.2.0 (2015-04-16)
[...........]
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