Counting degrees of freedom

"Geostatistical Ore Reserve Estimation", by M David

Fig. 203. Pattern showing all the points within B,
which are estimated from the same nine holes.

Degrees of freedom are positive integers for sets of measured values with constant weights but positive irrationals for sets of measured values with variable weights. Counting degrees of freedom didn’t make grade in his1977 Geostatistical Ore Reserve Estimation.