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Volume 25 (2025)
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JP Journal of Biostatistics
JP Journal of Biostatistics
Volume 3, Issue 3, Pages 187 - 193 (October 2009)
COMPARISON OF SPLINE WITH KRIGING IN AN EPIDEMIOLOGICAL PROBLEM
Roshanak Alimohammadi (Iran)
Abstract:
There are various methods to analyze different kinds of data sets. Spatial data is defined when data is dependent on each other based on their respective locations. Spline and kriging are two methods for interpolating and predicting spatial data. Under certain conditions, these methods are equivalent, but in practice they show different behaviors. Amount of data can be observed only at some positions that are chosen as positions of sample points, therefore, prediction of data values in other positions is important. In this paper, the link between spline and kriging methods is described, then for an epidemiological two dimensional real data set, data is observed in geological longitude and in latitude dimensions, and behavior of these methods are investigated. Comparison of their performances shows that for this data set, kriging method has a better performance than spline method.
Keywords and phrases:
spatial data, spline, kriging.
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P-ISSN: 0973-5143
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