I have produced a series of graphs with the png command, however when I have
finally printed these out the black text appears to have a colour shadow with
blue or red on either side of the letter.
I tried increasing my res to 1200 and this improved it somewhat, but the text
is still not sharp and occassionally these "shadows" will still print.
I initially thought this was an issue with the printer.. But I can produce a
pdf image and it is sharp. However as I have 50+ images I want to include in a
word document the pdf files are much too large and was the reason I was using
png.
I am using an older version of R, but didn't want to upgrade as this may cause
issues with my completed analyses and the potential changes to other functions.
Can someone suggest what it is I have missed?
Thank you very much.
Alice Johnstone
Example code:
Png("volcano.png",units="cm",height=15,width=15,res=1200,pointsize=12)
Volcano2(fit2.eb,coef=2,highlight=5,xlab="log fold change",ylab="log
odds",pch=16,cex=0.5, main="Volcano Plot",xlim=c(-2,2))
Dev.off()
> sessionInfo()
R version 2.8.0 (2008-10-20)
i386-pc-mingw32
locale:
LC_COLLATE=English_New Zealand.1252;LC_CTYPE=English_New
Zealand.1252;LC_MONETARY=English_New
Zealand.1252;LC_NUMERIC=C;LC_TIME=English_New Zealand.1252
attached base packages:
[1] grid splines tools stats graphics grDevices utils
[8] datasets methods base
other attached packages:
[1] affyQCReport_1.20.0 arrayQualityMetrics_1.8.1
[3] marray_1.20.0 beadarray_1.10.0
[5] hwriter_0.93 latticeExtra_0.5-4
[7] simpleaffy_2.18.0 affyPLM_1.18.0
[9] preprocessCore_1.4.0 RColorBrewer_1.0-2
[11] vsn_3.8.0 genefilter_1.22.0
[13] survival_2.34-1 geneplotter_1.20.0
[15] annotate_1.20.0 xtable_1.5-4
[17] lattice_0.17-15 sma_0.5.15
[19] rat2302probe_2.3.0 rat2302cdf_2.3.0
[21] rat2302.db_2.2.5 RSQLite_0.7-1
[23] DBI_0.2-4 AnnotationDbi_1.4.0
[25] MASS_7.2-44 gcrma_2.14.0
[27] matchprobes_1.14.0 affy_1.20.0
[29] Biobase_2.2.0 limma_2.16.2
[31] gplots_2.6.0 gdata_2.4.2
[33] gtools_2.5.0
loaded via a namespace (and not attached):
[1] affyio_1.10.0 KernSmooth_2.22-22
P Think before you print
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