Southland-South Otago Geochemical Baseline Survey, New Zealand
Spatial Factor Model (Results)
Element:
Ag (Silver)
Al (Aluminium)
As (Arsenic)
Au (Gold)
Ba (Barium)
Be (Beryllium)
Bi (Bismuth)
C (Carbon)
Ca (Calcium)
Cd (Cadmium)
Ce (Cerium)
Co (Cobalt)
Cr (Chromium)
Cs (Caesium)
Cu (Copper)
Dy (Dysprosium)
Er (Erbium)
Eu (Europium)
Fe (Iron)
Ga (Gallium)
Gd (Gadolinium)
Hf (Hafnium)
Hg (Mercury)
Ho (Holmium)
In (Indium)
K (Potassium)
La (Lanthanum)
Li (Lithium)
Lu (Lutetium)
Mg (Magnesium)
Mn (Manganese)
Mo (Molybdenum)
Na (Sodium)
Nb (Niobium)
Nd (Neodymium)
Ni (Nickel)
P (Phosphorus)
Pb (Lead)
Pr (Praseodymium)
Rb (Rubidium)
S (Sulfur)
Sb (Antimony)
Sc (Scandium)
Se (Selenium)
Sm (Samarium)
Sn (Tin)
Sr (Strontium)
Tb (Terbium)
Te (Tellurium)
Th (Thorium)
Ti (Titanium)
Tl (Thallium)
Tm (Thulium)
U (Uranium)
V (Vanadium)
Y (Yttrium)
Yb (Ytterbium)
Zn (Zinc)
Zr (Zirconium)
Show me:
Raw data
Model prediction
β (regression coefficients)
f (spatial factors -- expected value)
δ² (residual variance)
φ (spatial correlation)
σ² (inter-depth variance)
α (inter-depth dependency)
Show augmented observations (mean posterior sample)
Response is recorded in log-parts-per-billion
Continuous predictor variables are standardised
Model parameters f, α, φ, and σ² are independent of selected element
Parameter summaries are given as posterior means and 95% credible intervals; these are delineated on each plot with solid and dashed vertical lines respectively, and appear as the titles in the form [ MEAN (LOWER CI, UPPER CI) ]
Where useful to the interpretation of the parameters, a vertical red dotted line marks off zero
To refer to these results, please cite Davies TM, Banerjee S, Martin AP, Turnbull RE (2022) A nearest-neighbour Gaussian process spatial factor model for censored, multi-depth geochemical data,
Journal of the Royal Statistical Society Series C (Applied Statistics)
, [to appear].