[R] summary(lm(x~y)) difference between R-2.2.1 and R-2.3.0
maechler at stat.math.ethz.ch
Thu Apr 27 17:43:54 CEST 2006
>>>>> "roger" == roger bos <roger.bos at gmail.com>
>>>>> on Thu, 27 Apr 2006 11:06:36 -0400 writes:
roger> Robin, I still don't know what the problem is, but
roger> your example works on my R-2.3.0pat (created on
roger> 4/24/2006). You may want to try the patched version
roger> if you are not already running it.
>> x <- 1:10; y <- 10:1; summary(lm(x~y))
but that also works on R 2.3.0 - for me.
and probably almost everyone.
Robin is also seeing other strange behavior of R 2.3.0
(when starting X11() only when running under ESS).
My current guess would go in the direction that Robin's software
or hardware *infrastructure* (i.e. those parts ``below R'') is
acting up for some reason.
Can we get a bit more feedback, on this:
For whom does
x <- 1:10; y <- 10:1; summary(lm(x~y))
give a bus error (or other kind of crash) ?
roger> On 4/27/06, Robin Hankin <r.hankin at noc.soton.ac.uk>
>> Hi Roger
>> good point. I can reproduce the error much more simply:
>> > x <- 1:10 > y <- 10:1 > summary(lm(x~y))
>> Call: lm(formula = x ~ y)
>> *** caught bus error *** address 0x18, cause 'invalid
>> Traceback: 1: sort(x, partial = unique(c(lo, hi))) 2:
>> quantile.default(resid) 3: quantile(resid) 4:
>> structure(quantile(resid), names = nam) 5:
>> print.summary.lm(list(call = lm(formula = x ~ [snip]
>> On 27 Apr 2006, at 15:44, roger bos wrote:
>> > I don't know if this is causing the error, by in your
>> traceback I > saw sort() > was used and sort now removes
>> all the attributes when it sorts. I > used to > use
>> sort() to sort dates in character format and now it turns
>> them > into > integers and is breaking all my code. The
>> problem with upgrading > is your > never know what the
>> end result will be on your code. Check and see > if your
>> > data needs the attributes to remain in order to
>> function properly.
>> > On 4/27/06, Robin Hankin <r.hankin at noc.soton.ac.uk>
>> >> Hi
>> Robin Hankin Uncertainty Analyst National Oceanography
>> Centre, Southampton European Way, Southampton SO14 3ZH,
>> UK tel 023-8059-7743
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