[R-sig-ME] current r-forge version fails R CMD check ... ?
Martin Maechler
maechler at stat.math.ethz.ch
Fri Jul 31 10:41:18 CEST 2009
>>>>> "BB" == Ben Bolker <bolker at ufl.edu>
>>>>> on Thu, 30 Jul 2009 17:30:17 -0400 writes:
BB> When I use the latest r-forge version of lme4
BB> ( 0.999375-32 ) it seems to fail R CMD check on a tiny
BB> numerical mismatch of two objects that are supposed
BB> (??) to be identical (I also
BB> get a mangled CHOLMOD error message, but I suspect that
BB> comes from somewhere within Matrix ...)
yes, and those should be gone with the version of Matrix
(0.999375-30) of two days ago.
BB> can anyone confirm?
No. To the contrary.
I have had a slightly updated version of tests/lmer-1.Rout.save
ready to be committed for a while, but that's only trivial
changes.
and below, from your sessionInfo(), it looks like you are using
a current version of R and packages ...
hmm ...
Regards,
Martin
BB> can anyone confirm? any ideas for a fix?
BB> The offending mismatch between ranef(m2) and ranef(m3)
BB> is very small ...
well; it's interesting that the offending mismatch in the error
message below is between m0 and m1, ...
>> ranef(m2)
BB> $ff
BB> (Intercept) x2
BB> 1 -0.8896154 0.06947426
BB> 2 1.9253111 -0.15035662
BB> 3 -0.1315062 0.01026994
BB> 4 0.2420718 -0.01890453
>> ranef(m3)
BB> $ff
BB> (Intercept) x2
BB> 1 -0.8896130 0.06947407
BB> 2 1.9253069 -0.15035628
BB> 3 -0.1315054 0.01026988
BB> 4 0.2420710 -0.01890446
BB> (this doesn't affect anything I'm doing directly, but
BB> I want to build some Windows binaries of a hacked version
BB> using the CRAN win-builder, and to do that I think it
BB> needs to pass R CMD check ... for now I am going to
BB> try commenting out the offending test, but that seems
BB> like a bad idea in general ...)
yes, "bad idea ..".
BTW: Have you noticed that we (Doug Bates and I, when at the
useR/DSC meetings) have moved the former 'allcoef' branch into a
``regular R-forge package'' called 'lme4a'
But yes, that definitely does not pass 'CMD check at the moment'.
>> getwd()
BB> [1] "/home/ben/lib/R/pkgs/lme4/pkg/lme4/tests"
>> source("lmer-1.R",echo=TRUE)
BB> ...
>> D <- data.frame(y= rnorm(20,10), ff = gl(4,5),
BB> x1=rnorm(20,3), x2=rnorm(20,7),
BB> x3=rnorm(20,1))
>> m0 <- lmer(y ~ (x1 + x2)|ff, data = D)
>> m1 <- lmer(y ~ x1 + x2|ff , data = D)
We had added these checks exactly *because* we wanted to be sure
that a slightly different use of formulas would lead to the
identical 'X', 'Z', .... matrices, and L(theta)
parametrizations,
so I wonder how your version of lme4 could give different
results here....
>> m2 <- lmer(y ~ x1 + (x2|ff), data = D)
>> m3 <- lmer(y ~ (x2|ff) + x1, data = D)
>> stopifnot(identical(ranef(m0), ranef(m1)),
BB> + identical(ranef(m2), ranef(m3)),
BB> + inherits(tryCatch(lmer(y ~ x2|ff + x1, data = D) ....
BB> [TRUNCATED]
BB> CHOLMOD error: =*ᶈ1ñ¿@ÃÂTôoá¶
BB> Error: identical(ranef(m0), ranef(m1)) is not TRUE
BB> In addition: Warning message:
BB> In Ops.factor(ff, x1) : + not meaningful for factors
Note that the cholmod error and warning is from the
lmer(y ~ x2|ff + x1, data = D)
part {which is wrapped in tryCatch(...)}.
Also, if I execute
##----------------------------------------------------
D <- data.frame(y= rnorm(20,10), ff = gl(4,5),
x1=rnorm(20,3), x2=rnorm(20,7),
x3=rnorm(20,1))
m0 <- lmer(y ~ (x1 + x2)|ff, data = D)
m1 <- lmer(y ~ x1 + x2|ff , data = D)
m2 <- lmer(y ~ x1 + (x2|ff), data = D)
m3 <- lmer(y ~ (x2|ff) + x1, data = D)
stopifnot(identical(ranef(m0), ranef(m1)),
identical(ranef(m2), ranef(m3)))
cat("Ok\n")
##----------------------------------------------------
many times, I never see a problem.
Are you sure you are not using your already-hacked version of
lme4 ???
Martin Maechler, ETH Zurich
BB> sessionInfo():
BB> R version 2.9.1 (2009-06-26)
BB> i486-pc-linux-gnu
BB> locale:
BB> LC_CTYPE=en_US.UTF-8;LC_NUMERIC=C;LC_TIME=en_US.UTF-8;LC_COLLATE=en_US.UTF-8;LC_MONETARY=C;LC_MESSAGES=en_US.UTF-8;LC_PAPER=en_US.UTF-8;LC_NAME=C;LC_ADDRESS=C;LC_TELEPHONE=C;LC_MEASUREMENT=en_US.UTF-8;LC_IDENTIFICATION=C
BB> attached base packages:
BB> [1] stats graphics grDevices utils datasets methods base
BB> other attached packages:
BB> [1] MASS_7.2-47 lme4_0.999375-32 Matrix_0.999375-29
BB> lattice_0.17-25
BB> loaded via a namespace (and not attached):
BB> [1] grid_2.9.1
BB> --
BB> Ben Bolker
BB> Associate professor, Biology Dep't, Univ. of Florida
BB> bolker at ufl.edu / www.zoology.ufl.edu/bolker
BB> GPG key: www.zoology.ufl.edu/bolker/benbolker-publickey.asc
BB> _______________________________________________
BB> R-sig-mixed-models at r-project.org mailing list
BB> https://stat.ethz.ch/mailman/listinfo/r-sig-mixed-models
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