[R-sig-ME] Error in glmer fit

[ONKELINX, Thierry]

Dear Kevin,

I cannot give you answer on why this happens. You can try the lme4.0 package as a work around. It is an older version of lme4.

Best regards,

ir. Thierry Onkelinx
Instituut voor natuur- en bosonderzoek / Research Institute for Nature and Forest
team Biometrie & Kwaliteitszorg / team Biometrics & Quality Assurance
Kliniekstraat 25
1070 Anderlecht
Belgium
+ 32 2 525 02 51
+ 32 54 43 61 85
Thierry.Onkelinx op inbo.be
www.inbo.be

To call in the statistician after the experiment is done may be no more than asking him to perform a post-mortem examination: he may be able to say what the experiment died of.
~ Sir Ronald Aylmer Fisher

The plural of anecdote is not data.
~ Roger Brinner

The combination of some data and an aching desire for an answer does not ensure that a reasonable answer can be extracted from a given body of data.
~ John Tukey


-----Oorspronkelijk bericht-----
Van: r-sig-mixed-models-bounces op r-project.org [mailto:r-sig-mixed-models-bounces op r-project.org] Namens Kevin E. Thorpe
Verzonden: dinsdag 13 november 2012 1:23
Aan: r-sig-mixed-models op r-project.org
Onderwerp: [R-sig-ME] Error in glmer fit

Hello.

I attempted the following command and got the resultant error.

glmer(InInt~speciality+position+stkperyr+conf+age+years+risk+stroke_type+(1|pid),data=dord4mod,family=binomial,verbose=TRUE)

Error in pwrssUpdate(pp, resp, tolPwrss, GQmat, compDev, fac, verbose) :
   PIRLS step failed

It seems to happen right off the bat.  Any idea what the source may be?
  I don't want to post the data in the open, but will send it privately if requested.  Here also is my sessionInfo()

R version 2.14.0 Patched (2011-11-29 r57769)
Platform: x86_64-unknown-linux-gnu (64-bit)

locale:
  [1] LC_CTYPE=en_US       LC_NUMERIC=C         LC_TIME=en_US
  [4] LC_COLLATE=C         LC_MONETARY=en_US    LC_MESSAGES=en_US
  [7] LC_PAPER=C           LC_NAME=C            LC_ADDRESS=C
[10] LC_TELEPHONE=C       LC_MEASUREMENT=en_US LC_IDENTIFICATION=C

attached base packages:
  [1] grid      tcltk     splines   stats     graphics  grDevices utils
  [8] datasets  methods   base

other attached packages:
  [1] lme4_0.999902345-0  Matrix_1.0-2        ResearchMethods_1.4
  [4] ellipse_0.3-5       gplots_2.10.1       KernSmooth_2.23-7
  [7] caTools_1.12        bitops_1.0-4.1      gdata_2.8.2
[10] gtools_2.6.2        irr_0.83            lpSolve_5.6.6
[13] lattice_0.20-0      rms_3.3-2           Hmisc_3.9-0
[16] survival_2.36-10

loaded via a namespace (and not attached):
[1] MASS_7.3-16    Rcpp_0.9.10    cluster_1.14.1 minqa_1.1.18
nlme_3.1-102
[6] tools_2.14.0

--
Kevin E. Thorpe
Biostatistician/Trialist,  Applied Health Research Centre (AHRC) Li Ka Shing Knowledge Institute of St. Michael's Assistant Professor, Dalla Lana School of Public Health University of Toronto
email: kevin.thorpe op utoronto.ca  Tel: 416.864.5776  Fax: 416.864.3016

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