Hi Gonzalo,

My first guess would be that you have not started you X11 session. You can
find it in your Application/Utility directory. True that and see if that
solves the problem.

Tony

On Thu, Mar 13, 2008 at 10:34 AM, "M. Gonzalo Claros Díaz" <claros@uma.es>
wrote:

> Hi:
>
> I was using arrayQuality library for months in R in mac OS 10.4
> without problems. Now I have an Intel mac with OS 10.5 and I have
> problems with arrayQuality functions: they do not start. This is the
> transcription:
>
>
> gpQuality(RGdata$targets$FileName)
> [1] "Starting gpQuality..."
> Error en X11(paste("png::", filename, sep = ""), width, height,
> pointsize,  :
>   no fue posible iniciar el dispositivo PNG
> Además: Warning message:
> In png(filename = "qualPlot.50-51/Slid50-COM3-LAT5Total Baja-A.png",  :
>   no fue posible abrir el archivo PNG 'qualPlot.50-51/Slid50-COM3-
> LAT5Total Baja-A.png'
>
> traceback()
> 3: png(filename = "qualPlot.50-51/Slid50-COM3-LAT5Total Baja-A.png",
>        width = 800, height = 600, units = "px", pointsize = 12,
>        bg = "white", res = NA)
> 2: do.call(dev, maDotsMatch(maDotsDefaults(opt, c(list(filename =
> plotname),
>        plotdef$dev)), formals(args(dev))))
> 1: gpQuality(RGdata$targets$FileName)
>
>
> On the contrary, a command like
>
>        maQualityPlot(RGdata)
>
> works perfectly.
>
> ¿Do someone have any idea?
>
> Gonzalo
>
> sessionInfo()
> R version 2.6.2 (2008-02-08)
> i386-apple-darwin8.10.1
>
> locale:
> es_ES.UTF-8/es_ES.UTF-8/es_ES.UTF-8/C/es_ES.UTF-8/es_ES.UTF-8
>
> attached base packages:
> [1] grid      tools     stats     graphics  grDevices utils
> datasets  methods   base
>
> other attached packages:
>  [1] statmod_1.3.1       arrayQuality_1.14.0 RColorBrewer_1.0-2
> gridBase_0.4-3
>  [5] hexbin_1.12.0       lattice_0.17-4      convert_1.14.0
> Biobase_1.16.3
>  [9] marray_1.16.0       limma_2.12.0
>
> --
> «Donde me he equivocado, soy el único responsable; donde no,
> el mérito es de los que me han ayudado»
> ================================================================
> M. Gonzalo CLAROS                                  claros@uma.es
> Dpt. Biología Molecular y Bioquímica
> Facultad de Ciencias                      Fax: (+34) 95 213 2041
> Universidad de Málaga                     Tel: (+34) 95 213 7284
> E-29071 Málaga (Spain)               http://www.bmbq.uma.es/fmp/
>
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