[Rd] Adding text comments to graphics device output files?
Duncan Temple Lang
dtemplelang at ucdavis.edu
Wed Jul 31 05:04:30 CEST 2013
I have some extensions of Simon U's png package
to read and write metadata elements for PNG.
They are at
When I have time to completely test them, maybe Simon
may incorporate them.
On 7/30/13 7:59 PM, Henrik Bengtsson wrote:
> several image file format supports textual/meta data comments in one
> way or the other. For me an obvious usage would be to add
> sessionInfo() information to PNG and PDF image files, ideally from
> within R although external tools would work as well(*). Has anyone
> looked into this or have any suggestions or comments?
> (*) One could even imagine including self-contained R
> scripts/vignettes within such comments.
> R-devel at r-project.org mailing list
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