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rr-rasterrgdal

Creating a raster dataset but plot error

l m learning R tool and l followed an example but although l did everything same ,l got an error during the plot raster.

here is the code:

library(raster)
library(rgdal)

myRaster1 <- raster(nrow=4, ncol=4)
myRaster1[]<- 1:ncell(myRaster1)
myRaster2=raster(nrow=8, ncol=8)
resample(myRaster1, myRaster2, method='bilinear')
plot(myRaster2, main="Raster with 32 pixels")

here is the error warnings:

Error in .plotraster2(x, col = col, maxpixels = maxpixels, add = add,  : 
  no values associated with this RasterLayer

how can l solve this problem?

Solution

  • You need to give a name to your resampled Raster:

    library(raster)
library(rgdal)

myRaster1 <- raster(nrow=4, ncol=4)
myRaster1[]<- 1:ncell(myRaster1)
myRaster2=raster(nrow=8, ncol=8)
myRaster1.resampled <- resample(myRaster1, myRaster2, method='bilinear')
plot(myRaster1.resampled, main="Raster with 32 pixels")