I'm trying to compute zonal statistics but get an error saying that "negative dimensions are not allowed". I'm assuming its because my raster file extends into negative coordinates. Extent of the file is xmin: 0, xmax: 21600, ymin: -8700, ymax: 0. (The top left corner of the image is 0, 0). I want to move this up so that ymin: 0 and ymax: 8700. Alternatively, if there is another way to avoid this error that is welcome.