I have xyz points. I have imported these XYZ points into QGIS and need to create a raster from these points. I have used the raster interpolation plugin and I used IDW as the interpolation method. I got this raster (The following snapshot). Why it is like this? How I can fix it?
The average distance between points are 15m. In the above snapshot, the distance coefficient p is 2.
In the below snapshot, the distance coefficient p is 15. I have to mentioned that I used the IDW method.
What distance coefficient p. I need to use.