Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 317449
Title Robustness and efficiency of D-optimal experimental designs in a growth problem
Author(s) Paulo, M.J.; Rasch, D.
Source Biometrical Journal 44 (2002)5. - ISSN 0323-3847 - p. 527 - 540.
Department(s) Biometris (WU MAT)
Publication type Refereed Article in a scientific journal
Publication year 2002
Abstract To assess tree growth, for example in diameter, a forester typically measures the trees at regular time points. We call such designs equidistant. In this paper we look at the robustness and efficiency of several experimental designs, using the D-optimality criterion, in a case study of diameter growth in cork oaks. We compare D-optimal designs (unrestricted and replication-free) with equidistant designs. We further compare designs in different experimental regions. Results indicate that the experimental region should be adequate to the problem, and that D-optimal designs are substantially more efficient than equidistant designs, even under parameter mis-specification.
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