[BioC] Mfuzz plot -pdf

[dorothyc]

Hi,

I'm trying to make pdf for mfuzzPlot (please see script below), but I  
keep getting an error saying the file is not recognizable or corrupted  
(please see attachment).  The mfuzzPlot can be displayed in R but not  
written as a PDF?!

----------------------
mfuzzPlot <- mfuzz.plot(eset.s, cl = cl, mfrow = c(4,4), time.labels =  
c(0,1,2,5,10,15,30,60) )
pdf(file = paste("MfuzzPlot", sample_output, ct, mb, ".pdf", sep="_"))
mfuzzPlot
dev.off()
--- or
pdf(file = paste("MfuzzPlot", sample_output, ct, mb, ".pdf", sep="_"))
mfuzzPlot <- mfuzz.plot(eset.s, cl = cl, mfrow = c(4,4), time.labels =  
c(0,1,2,5,10,15,30,60) )
dev.off()
___________

I'd very much appreciate your feedback.

Thanks,
Dorothy