This is due to long-staning issue in methods internals, which are
involved because loading Matrix shadows base::mean with Matrix::mean.
A work-around has been in place in R_devel for some time; a proper fix
may come at some point in the future. So if your real code doesn't
need the moficied mean from Matrix you can use base::mean; otherwise
you will have to use an R-devel snapshot.
Best,
luke
On Mon, 7 Jan 2013, Sarah Brockhaus wrote:
Hello,
In my simulation I use the try()-function to catch possible errors when
fitting models. I run the simulationon a Linux-server using the command " R
CMD BATCH nameOfFile.R &". When executing the code as batch-job I get the
problem that the execution is halted without giving an error message. But
when I run the code interactivly the error is catched by try() as it would be
expected.
The problem is somewhat strange as it only occurs when the code is executed
as a batch-job and when the package "Matrix" is loaded.
I wrote a small example reproducing the error. (In my code the error occurs
in mgcv:::fixDependence, which looks like the code I'm using below in order
to get a small reproducible example. I realized that the code makes no
sense...)
######################################
library(Matrix)
R <- matrix(abs(rnorm(25)), 5, 5)
r0 <- r <- nrow(R)
# while-loop produces error that should be catched by the function try()
try(
while (mean(R[r0:r, r0:r]) > 0) r0 <- r0 - 1
)
# so "Hello" should be printed
print("Hello")
######################################
I use R version 2.15.1 (2012-06-22) on a x86_64-pc-linux-gnu (64-bit)
platform.
I would be grateful for help.
Best regards,
Sarah Brockhaus
PHD-student
Department of Statistics
University of Munich
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--
Luke Tierney
Chair, Statistics and Actuarial Science
Ralph E. Wareham Professor of Mathematical Sciences
University of Iowa Phone: 319-335-3386
Department of Statistics and Fax: 319-335-3017
Actuarial Science
241 Schaeffer Hall email: luke-tier...@uiowa.edu
Iowa City, IA 52242 WWW: http://www.stat.uiowa.edu
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