Re: [PATCH] ob-R output file with graphics parameter

[Jack Kamm]

Hi Chuck,

> If you modify the ECM to change `:exports results' to `:exports
> none' and clean older fig[12].png's from the directory, the export
> fails.

Thanks for this example. I had mistakenly thought that code blocks
with ":exports none" would be evaluated for side effects, but you are
right, these blocks are skipped altogether during export.

Instead, I think this use case could be handled by the ":results silent"
header. Blocks with that header are evaluated during export, but the
result is not inserted into the org buffer or the exported document. It
seems like a more general way to evaluate code blocks for side effects
only.

To test this out, you could replace the header arguments in your
example with:

":exports results :results graphics file silent :file fig1.png"

> So if everyone else is determined to make this change I can live
> with it.

I do hope someone submits an RFC, so we can discuss this more
concretely. I still think it would be nice if we could go back to just
":results graphics" to insert a figure. Unfortunately, I'm not currently
able to propose the patch, as I'm still in limbo w.r.t. my employer
agreement.