创建栅格数据集但绘制错误

Question

我正在学习R tool并且我跟着一个例子但是尽管我做了一切相同的事情，但在the plot raster期间我遇到了错误。

这是代码：

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")

这是错误警告：

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

怎样才能解决这个问题？

Answer 1

您需要为重新采样的栅格命名：

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")