Randomized trial demonstrates new interpolation methods for creating continuous surfaces from irregular data points, indicating improved analysis in empirical fields.
In many fields using empirical areal data there arises a need for interpolating from irregularly-spaced data to produce a continuous surface. These irregularly-spaced locations, hence referred to as “data points,” may have diverse meanings: in meterology, weather observation stations; in geography, surveyed locations; in city and regional planning, centers of data-collection zones; in biology, observation locations. It is assumed that a unique number (such as rainfall in meteorology, or altitude in geography) is associated with each data point.
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Donald S. Shepard (1968) studied this question.
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