[Rd] X11() dies in remote background

From: Vincent Carey 525-2265 <stvjc_at_channing.harvard.edu>
Date: Sat, 21 Jul 2007 07:24:25 -0400 (EDT)

this is not a problem with R but a request for related advice.

i am trying to run a lengthy batch job from my home.

the OS is ...
Linux jedi.bwh.harvard.edu 2.4.22-openmosix1smp #1 SMP Fri Sep 5 01:05:37 CEST 2003 i686 athlon i386 GNU/Linux

i start the job and put it in the background. while i am connected, all is well. eventually my ISP shuts down the connection if i do not do any input. then:

Boxplots of G intensitiesError in X11(paste("png::", filename, sep = ""), width, height, pointsize, :   unable to start device PNG
Calls: doPlot -> qcBeadLevel -> png
In addition: Warning message:
In png(filename, width = 640, height = 480) :   unable to open connection to X11 display '' Execution halted

is it possible to have X11() succeed when there is no real display to connect to?

R version 2.6.0 Under development (unstable) (2007-06-29 r42093) i686-pc-linux-gnu


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

other attached packages:

 [1] beadarray_1.5.3    beadarraySNP_1.3.7 quantsmooth_1.3.0  lodplot_1.1
 [5] quantreg_4.06      SparseM_0.73       affy_1.13.9        affyio_1.3.1
 [9] geneplotter_1.13.4 lattice_0.15-11    annotate_1.13.3    Biobase_1.13.19

[13] limma_2.9.5

loaded via a namespace (and not attached):
[1] KernSmooth_2.22-20 RColorBrewer_0.2-3 rcompgen_0.1-13

Vince Carey, PhD
Assoc. Prof Med (Biostatistics)
Harvard Medical School
Channing Laboratory - ph 6175252265 fa 6177311541
181 Longwood Ave Boston MA 02115 USA

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