CODEWITHSUNDEEP
rr-raster
UseR10085
UseR10085

Reputation: 8200

How to read .grd file as raster in R?

I want to read and stack several .grd files and export it as .nc file in R. I am using the following commands

library(raster)
library(ncdf4)
library(RNetCDF)
library(rgdal)

files <-list.files(path="G:/Gridded data/", 
           pattern="GRD", all.files=FALSE, full.names=TRUE,recursive=TRUE)
s <- stack(files)
rstack <- raster(files[1])

But it is giving the following error

Error in .local(.Object, ...) : Error in .rasterObjectFromFile(x, band = band, objecttype = "RasterLayer", : Cannot create a RasterLayer object from this file. Can anyone help? thanks in advance

Upvotes: 0

Views: 5059

Answers (1)

Robert Hijmans
Robert Hijmans

Reputation: 47696

I would try pattern="\\.grd$" (this means, the file ends on ".grd"). Or at least pattern="grd" instead of pattern="GRD". (or use ignore.case = TRUE)

files <- list.files(path="G:/Gridded data/",  pattern="\\.grd$", full.names=TRUE,recursive=TRUE)

Upvotes: 2

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