This might not be an issue, but I could not verify this understanding in the documentation.
Here is what I do:
Input:
Raster "A" (cells with continuous values)
Multiple Points (Geometry)
Process:
Create a 1000m buffer (circle) around each point using st_bufferPoint
Join (intersect) Raster "A" and the circles
rasterize each circle to create a mask
apply the mask to the Raster "A"
Calculate statistics (rf_agg_stats) on the masked raster.
The statistics (min,max,mean,variance) look good and plausible. I have only one issue with data_cells and na_datacells. For some masks the total sum of the two is 65536 and others it is 131072 (=2*65536). Is this correct? I would have expected it would always be the same. Maybe if the circle falls at certain positions on the raster mask there is a need to make it double the size.
As said, the other statistics are correctly calculated.
This might not be an issue, but I could not verify this understanding in the documentation. Here is what I do:
Input: Raster "A" (cells with continuous values) Multiple Points (Geometry)
Process:
The statistics (min,max,mean,variance) look good and plausible. I have only one issue with data_cells and na_datacells. For some masks the total sum of the two is 65536 and others it is 131072 (=2*65536). Is this correct? I would have expected it would always be the same. Maybe if the circle falls at certain positions on the raster mask there is a need to make it double the size. As said, the other statistics are correctly calculated.