Hi Bill:
Certainly for awhile, the R package ncdf4 on Windows did not support OpeNDAP,
but I thought the most recent version did (I may well be mistaken), but David
Pierce is the authoritative source on this, so I have copied him on this, as
this is more an R issue than a netcdf issue.
Just out of curiosity, from a Windows machine have you tried accessing an
OPeNDAP server that doesn't include a port number?
-Roy
> On Jun 13, 2017, at 10:47 AM, Capehart, William J
> <William.Capehart@xxxxxxxxx> wrote:
>
> Hello All:
>
> I have undergrad students working with the R package with tablet PCs running
> Windows that are issued by the university via RStudio since that is what they
> will be trained on when they take their stats coursework. I am trying to set
> things up so they can access data from our OPeNDAP server.
>
> However, when windows runs it they are hit with the following error (which I
> also get on my windows build).
>
> Error in R_nc4_open: NetCDF: Unknown file format
> Error in nc_open(filename = URL_85) :
> Error in nc_open trying to open file
> http://kyrill.ias.sdsmt.edu:8080/thredds/dodsC/testAll/TSA_RCP85_CONUS_1920-2100.nc4
>
> This happens with other OPeNDAP-strored files as well.
>
> All is well when working in the unix environment. Windows, not so much.
>
> I have JFGI’ed for solutions that don’t involve Cygwin and am not finding
> much of a solution.
>
> Is the problem with the developer of the R package or is the Windows
> libraries not OPeNDAP-compatible by virtue of existing on the Windows side of
> the game.
>
> Otherwise is there a solution that does not require downloading everything?
>
> (And yes, I’ve pounded the table bringing in Macs as an official species of
> laptop. They keep saying no.)
>
> Cheers and Thanks Much
> ------------------------------------------------
> Bill Capehart <William.Capehart@xxxxxxxxx>
> Atmospheric and Environmental Sciences Program Coordinator
> Civil and Environmental Engineering
> 201 Mineral Industries Building
> South Dakota School of Mines and Technology
> 501 East St Joseph Street
> Rapid City, SD 57701-3995
> Ph: +1-605-394-1994 Mobile: +1-605-484-4692
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**********************
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**********************
Roy Mendelssohn
Supervisory Operations Research Analyst
NOAA/NMFS
Environmental Research Division
Southwest Fisheries Science Center
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"From those who have been given much, much will be expected"
"the arc of the moral universe is long, but it bends toward justice" -MLK Jr.
