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WACALIB version 3.3 — a computer program to reconstruct environmental variables from fossil assemblages by weighted averaging and to derive sample-specific errors of prediction |
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| Authors: | J. M. Line Cajo J. F. ter Braak H. J. B. Birks |
| Affiliation: | (1) University of Cambridge Computer Laboratory, Pembroke Street, CB2 3OG Cambridge, UK;(2) Agricultural Mathematics Group-DLO, Box 100, 6700 AC Wageningen, The Netherlands;(3) DLO-Institute for Forestry and Nature Research, Box 23, 6700 AA Wageningen, The Netherlands;(4) Botanical Institute, University of Bergen, Allégaten 41, N-5007 Bergen, Norway;(5) Environmental Research Centre, University College London, 26 Bedford Way, WC1H OAP London, UK |
| Abstract: | A computer program for reconstructing environmental variables (e.g. lake-water pH) from fossil assemblages (e.g. diatoms) by weighted averaging regression and calibration is described. The estimation of sample-specific errors of prediction by bootstrapping is outlined. The program runs on IBM-compatible personal computers. |
| Keywords: | weighted averaging regression calibration bootstrapping maximum likelihood reconstruction error estimation |
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