SAMPLING SEGMENTS IN AN AREA FRAME WITH A DISTANCE THRESHOLD

M Fuentes; F. J Gallego

doi:10.4148/2475-7772.1330

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SAMPLING SEGMENTS IN AN AREA FRAME WITH A DISTANCE THRESHOLD

Conference proceeding

Open access

SAMPLING SEGMENTS IN AN AREA FRAME WITH A DISTANCE THRESHOLD

M Fuentes and F. J Gallego

Conference on Applied Statistics in Agriculture, Vol.7th, pp.34-44

04/23/1995

DOI: 10.4148/2475-7772.1330

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Abstract

A simple random sample in an area frame usually gives a number of pairs of elements that are close to each other. These elements give redundant information since there is usually a high spatial autocorrelation at short distances. The efficiency of sampling is generally improved if we impose that the distance between two elements of the sample cannot be less than a certain threshold. However applying this restriction can introduce a significant perturbation of the sampling probability. Elements near the borders of the region are more likely to be selected. In the case of aligned sampling by repetition of a pattern in a square block, a distance threshold does not modify the marginal probability of each element of the population, although crossed probabilities are slightly changed.

Details

Title: Subtitle: SAMPLING SEGMENTS IN AN AREA FRAME WITH A DISTANCE THRESHOLD
Creators: M Fuentes
F. J Gallego
Resource Type: Conference proceeding
Publication Details: Conference on Applied Statistics in Agriculture, Vol.7th, pp.34-44
DOI: 10.4148/2475-7772.1330
ISSN: 2475-7772
eISSN: 2475-7772
Language: English
Date published: 04/23/1995
Academic Unit: Statistics and Actuarial Science; President; Biostatistics
Record Identifier: 9984065886502771

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