On Thu, Jun 11, 2015 at 5:38 PM, Roger Bivand <roger.biv...@nhh.no> wrote:
> On Thu, 11 Jun 2015, Anna Petrášová wrote: > > Hi, >> >> I am using R rgrass7 package and it seems that when writing a raster which >> has only NA, it fails with "only numeric values may be exported": >> >> >> https://github.com/cran/rgrass7/blob/386b11e5a2f3879ec63d299c0594f55cbd39c8e5/R/bin_link.R#L446 >> > > This site has nothing whatsoever to do with anything, and is certainly > unauthorised. Please only refer to R-Forge: > > > https://r-forge.r-project.org/scm/viewvc.php/pkg/rgrass7/R/bin_link.R?view=markup&revision=25&root=spgrass > > shows the full context, file name, but not line number. > > Are your NAs numeric? > > is.numeric(NA) >> > [1] FALSE > >> is.numeric(as.numeric(NA)) >> > [1] TRUE > The problem seems to be in line of my code: I_oaks_rast_sp <- as(I_oaks_rast, 'SpatialGridDataFrame') where I_oaks_rast is numeric but not the resulting I_oaks_rast_sp which is then written with writeRAST and fails. >> Is this intended behavior or a bug? >> > > User misunderstanding. NAs are logical unless created in the context of an > object with a different storage mode. > Indeed, I'm not an experienced R user... Thank you > > >> Thank you, >> >> Anna >> >> > -- > Roger Bivand > Department of Economics, Norwegian School of Economics, > Helleveien 30, N-5045 Bergen, Norway. > voice: +47 55 95 93 55; fax +47 55 95 91 00 > e-mail: roger.biv...@nhh.no
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