Spencer,
On 23 January 2016 at 20:27, Spencer Graves wrote:
| How can I get a full URL for anything on CRAN?
|
| Using Safari, Google Chrome, and Firefox under OS X 10.11.2, I
| select a CRAN mirror from "www.r-project.org" and get a URL like
| "https://cran.rstudio.com/";. Then I select "packages" and get a
| different web page, but the URL displayed doesn't change. I'd like to
| access the full URL of a vignette in a package, but modern web browsers
| hide that detail.
1) All CRAN mirrors use the same layout.
2) Using a CDN such as cran.rstudio.com, or now the equivalent
cloud.r-project.org is 'A Good Thing (TM)' because the resulting location
will almost always be close to any reader -- as it adapts based on the
reader location. See Wikipedia on 'Content Deliver Networks' for more
details.
3) http://cloud.r-project.org/package=sos is preferred for any pkg, here
your sos package
4) It flattens to https://cloud.r-project.org/web/packages/sos/index.html
5) You can derive the vignette from that page or just construct it:
https://cloud.r-project.org/web/packages/sos/vignettes/sos.pdf
This is of the form ${SERVER}/web/packages/${PACKAGE}/${VIGNETTE}
I have been using url such as the one in 5) for a long while. Works like a
charm.
Now, from your vague text above, maybe you prefer NOT to use a CDN. In that
case, insert an _explicit_ server, say Berkeley's mirror and you get
https://cran.cnr.berkeley.edu/web/packages/sos/vignettes/sos.pdf
but that is _still_ of the form ${SERVER}/web/packages/${PACKAGE}/${VIGNETTE}
yet simple uses a different value for ${SERVER}.
Makes sense?
Dirk
--
http://dirk.eddelbuettel.com | @eddelbuettel | e...@debian.org
______________________________________________
R-devel@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-devel
