Katja,
this seems to be a bug.
I can reproduce this under 64-bit R-2.15.3 / R-prerelease for Windows.
It works with the results given by Ben Bolker under 32-bit R for Windows.
Will inspect shortly.
Best,
Uwe
On 07.03.2013 21:08, Katja Hebestreit wrote:
Hello,
optim hangs for some reason when called within the betareg function
(from the betareg package).
In this special case, the arguments which are passed to optim cause
never ending calculations.
I uploaded the arguments passed to optim on:
https://www.dropbox.com/s/ud507gbpt3gkbcp/optim_arguments.RData
I appreciate any help.
Cheers,
Katja
sessionInfo()
R version 2.15.3 (2013-03-01)
Platform: x86_64-pc-linux-gnu (64-bit)
locale:
[1] LC_CTYPE=en_US.UTF-8 LC_NUMERIC=C
[3] LC_TIME=en_US.UTF-8 LC_COLLATE=en_US.UTF-8
[5] LC_MONETARY=en_US.UTF-8 LC_MESSAGES=en_US.UTF-8
[7] LC_PAPER=C LC_NAME=C
[9] LC_ADDRESS=C LC_TELEPHONE=C
[11] LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C
attached base packages:
[1] stats graphics grDevices utils datasets methods
base
loaded via a namespace (and not attached):
[1] betareg_3.0-2 flexmix_2.3-8 lmtest_0.9-30
modeltools_0.2-19
[5] multcomp_1.2-15 sandwich_2.2-9 stats4_2.15.3
tools_2.15.3
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