Many thanks, That worked, since the NAMESPACE file incudes a warning about editing it directly I ysed the reoygen tag in the fucntion script #' @import raster.
On Sun, 1 Nov 2020 at 00:18, Marcelino de la Cruz Rot < marcelino.delac...@urjc.es> wrote: > Maybe including > > import(raster) > > or > > importFrom("raster", "levels") > > in the package NAMESPACE would help. > > Cheers, > > Marcelino > > El 31/10/2020 a las 13:24, nevil amos escribió: > > Apologies, I cannot see how to make a rero for this issue. > > > > I have a function that uses levels(r) tor return the RAT of a raster "r" > > when the function is sourced from a script > > source(".\R\function.r") > > it works fine. > > when the function is built into a package and sourced from there > > library(mypackage) using the same script file to make the package > > levels(r)[[1]] > > the same line throws an error, as levels(myraster returns NULL > > > > If I modify the script to include the raster namespace: > > raster::levels(r)[[1]] > > Then I get the error > > Error: 'levels<-' is not an exported object from 'namespace:raster' > > > > > > I have also tried just using levels(r) and putting raster as a depends > > rather than an import in the DESCRIPTION file for the package, this does > > not solve the error. > > > > > > Any suggestions on how to overcome the problem? > > > > many thanks > > > > Nevil Amos > > > > [[alternative HTML version deleted]] > > > > _______________________________________________ > > R-sig-Geo mailing list > > r-sig-...@r-project.org > > https://stat.ethz.ch/mailman/listinfo/r-sig-geo > > . > > > -- > Marcelino de la Cruz Rot > Depto. de Biología y Geología > Física y Química Inorgánica > Universidad Rey Juan Carlos > Móstoles España > > [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.