I have a shapefile with 65 data points. Each data point has a value for NO2 pollution. I would like to use kriging to create a grid of NO2 pollution values for the whole area. I have tried using Processing> Toolbox> SAGA> Ordinary Kriging. The process runs OK and two new layers are created called Quality Measure and Prediction, but both these layers are invisible or show no information.
What I assume is the value range of the Prediction file seems to indicate that something has gone wrong. It shows that the value of the black shade is 1.79769e+308 and the value of white is -1.79769e+308.
Can anyone help?