[Rd] Adding text comments to graphics device output files?

Henrik Bengtsson hb at biostat.ucsf.edu
Wed Jul 31 04:59:43 CEST 2013


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.

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