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...aster "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...

...pt > > 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 tri...

Hello, Could someone please tell if there is a way to append header info to the top of an exported dataframe (exported with write.table). I want to append the following, which are the defininitions for an asciigrid: ncols 532 nrows 999 xllcorner 510465 yllcorner 4766375 cellsize 30 NODATA_value -9999 Thanks very much, femke [[alternative HTML version deleted]]