विधियों की तुलना करें

	को-क्रिगिंग	व्युत्क्रम दूरी भारण (IDW)	यूनिवर्सल क्रिगिंग (प्रवृत्ति के साथ क्रिगिंग)
क्षेत्र	स्थानिक विश्लेषण	स्थानिक विश्लेषण	स्थानिक विश्लेषण
परिवार	Regression model	Regression model	Regression model
उद्भव वर्ष	1963	1968	1969
प्रवर्तक	Georges Matheron (geostatistics); multivariate extension	Donald Shepard	Georges Matheron
प्रकार	Multivariate geostatistical interpolation	Deterministic spatial interpolation	Geostatistical interpolation with spatial trend
मौलिक स्रोत	Matheron, G. (1963). Principles of geostatistics. Economic Geology, 58(8), 1246–1266.	Shepard, D. (1968). A two-dimensional interpolation function for irregularly-spaced data. Proceedings of the 23rd ACM National Conference, 517–524.	Matheron, G. (1963). Principles of geostatistics. Economic Geology, 58(8), 1246–1266.
उपनाम	co-kriging, multivariate kriging, ortak kriging	IDW, inverse distance interpolation, Shepard's method, ters mesafe ağırlıklı enterpolasyon	kriging with a trend, kriging with drift, trend kriging, evrensel kriging
संबंधित	3	3	3
सारांश	Cokriging extends kriging to use one or more correlated secondary variables to improve prediction of a primary variable. When the variable of interest is sparsely sampled but a related, cheaper-to-measure variable is densely sampled, cokriging borrows strength from the secondary variable through their cross-correlation, yielding more accurate interpolations and prediction variances than kriging the primary variable alone.	Inverse distance weighting is a simple, deterministic method for estimating values at unsampled locations by taking a weighted average of nearby measured points, where closer points carry more weight. Introduced by Donald Shepard in 1968, it embodies the first law of geography — near things are more related than distant things — and is one of the most widely used interpolation methods in GIS for mapping continuous fields such as rainfall, elevation, or pollution from scattered samples.	Universal kriging generalizes ordinary kriging to data whose mean varies systematically across space — a spatial trend or 'drift'. It models the mean as a function of the coordinates (or covariates) and krigs the residuals, so it can interpolate variables that drift in a preferred direction, such as temperature falling with latitude or a pollutant gradient, while still returning prediction variances.