Dr Emlyn Williams
Areas of expertise
- Applied Statistics 010401
- Agroforestry 070501
- Statistical Theory 010405
- Biological Mathematics 010202
Publications
- Williams, E, Forde, C, Imaki, J et al. 2021, 'Experimental design in practice: The importance of blocking and treatment structures', Australian & New Zealand Journal of Statistics, vol. 63, no. 3, pp. 455-467.
- Williams, E & Piepho, H 2018, 'An Evaluation of Error Variance Bias in Spatial Designs', Journal of Agricultural, Biological, and Environmental Statistics, vol. 23, no. 1, pp. 83-91.
- Piepho, H, Madden, L, Roger, J et al. 2018, 'Estimating the variance for heterogeneity in arm-based network meta-analysis', Pharmaceutical Statistics, vol. 17, no. 3, pp. 264-277pp.
- Piepho, H, Madden, L & Williams, E 2018, 'Contribution to the discussion of “When should meta-analysis avoid making hidden normality assumptions?� Using general-purpose GLMM software for meta-analysis', Biometrical Journal, vol. 60, no. 6, pp. 1059-1061.
- Piepho, H, Michel, V & Williams, E 2018, 'Neighbor balance and evenness of distribution of treatment replications in row-column designs', Biometrical Journal, vol. 60, no. 6, pp. 1172-1189pp.
- Sabastian, G, Kanowski, P, Williams, E et al 2016, 'Tree diameter performance in relation to site quality in smallholder timber production systems in Gunungkidul, Indonesia', Agroforestry Systems, pp. 1-13.
- Piepho, H, Williams, E & Michel, V 2016, 'Nonresolvable Row–Column Designs with an Even Distribution of Treatment Replications', Journal of Agricultural, Biological, and Environmental Statistics, vol. 21, no. 2, pp. 227-242.
- Kennedy, A, Spiers, J, Crowley, V et al 2015, 'Postprandial adiponectin and gelatinase response to a high-fat versus an isoenergetic low-fat meal in lean, healthy men', Nutrition, vol. 31, no. 6, pp. 863-870.
- Piepho, H, Mohring, J, Pflugfelder, M et al. 2015, 'Problems in parameter estimation for power and AR(1) models of spatial correlation in designed field experiments', Communications in Biometry and Crop Science, vol. 10, no. 1, pp. 3-16pp.
- Piepho, H, Madden, L & Williams, E 2015, 'Multiplicative interaction in network meta-analysis', Statistics in Medicine, vol. 34, no. 4, pp. 582-594.
- Moehring, J, Williams, E & Piepho, H 2015, 'Inter-block information: to recover or not to recover it?', Theoretical and Applied Genetics, vol. 128, no. 8, pp. 1541-1554pp.
- Kennedy, A, Spiers, J, Crowley, V et al 2015, 'Postprandial adiponectin and gelatinase response to a high-fat versus an isoenergetic low-fat meal in lean, healthy men', Nutrition, vol. 31, no. 6, pp. 863-870.
- Williams, E & Piepho, H 2015, 'Optimality and Contrasts in Block Designs with Unequal Treatment Replication', Australian and New Zealand Journal of Statistics, vol. 57, no. 2, pp. 203-209.
- Briceno Rodriguez, V, Harris-Pascal, D, Nicotra, A et al 2014, 'Variation in snow cover drives differences in frost resistance in seedlings of the alpine herb Aciphylla glacialis', Environmental and Experimental Botany, vol. 106, pp. 174-181.
- Williams, E, John, J & Whitaker, D 2014, 'Construction of more flexible and efficient p-rep designs', Australian and New Zealand Journal of Statistics, vol. 56, no. 1, pp. 89-96.
- Sabastian, G, Kanowski, P, Race, D et al 2014, 'Household and farm attributes affecting adoption of smallholder timber management practices by tree growers in Gunungkidul region, Indonesia', Agroforestry Systems, vol. 88, no. 2, pp. 257-268.
- Moehring, J, Williams, E & Piepho, H 2014, 'Efficiency of augmented p-rep designs in multi-environmental trials', Theoretical and Applied Genetics, vol. 127, no. 5, pp. 1049-1060.
- Chen, Y, Williams, E & Kirk, M 2014, 'Risk factors for acute respiratory infection in the Australian community', PLOS ONE (Public Library of Science), vol. 9, no. 7, pp. e101440-e101440.
- Williams, E & Piepho, H 2014, 'An Evaluation of Super-Valid Restricted Randomization', Journal of Agricultural, Biological, and Environmental Statistics, vol. 19, no. 4, pp. 472-480.
- Hoyle, G, Venn, S, Steadman, K et al 2013, 'Soil warming increases plant species richness but decreases germination from the alpine soil seed bank', Global Change Biology, vol. 19, no. 5, pp. 1549-1561.
- Piepho, H, Williams, E & Ogutu, J 2013, 'A two-stage approach to recovery of inter-block information and shrinkage of block effect estimates', Communications in Biometry and Crop Science, vol. 8, no. 1, pp. 10-22.
- Williams, E & Piepho, H 2013, 'A Comparison of Spatial Designs for Field Variety Trials', Australian and New Zealand Journal of Statistics, vol. 55, no. 3, pp. 253-258.
- Piepho, H, Mohring, J & Williams, E 2013, 'Why Randomize Agricultural Experiments?', Journal of Agronomy and Crop Science, vol. 199, no. 5, pp. 374-383.
- Piepho, H, Williams, E & Madden, L 2012, 'The Use of Two-Way Linear Mixed Models in Multitreatment Meta-Analysis', Biometrics, vol. 68, no. 4, pp. 1269-1277.
- Forde, C, Cox, A, Williams, E et al 2011, 'Associations between the sensory attributes and volatile composition of Cabernet Sauvignon wines and the volatile composition of the grapes used for their production', Journal of Agricultural and Food Chemistry, vol. 59, no. 6, pp. 2573-2583.
- Williams, E, Piepho, H & Whitaker, D 2011, 'Augmented p-rep designs', Biometrical Journal, vol. 53, no. 1, pp. 19-27.
- Williams, E 2011, 'Book Review: Computer-Assisted Statistics Textbooks - Experiments in Agriculture and Biology', Australian and New Zealand Journal of Statistics, vol. 53, no. 4, pp. 486-487.
- Piepho, H & Williams, E 2010, 'Linear variance models for plant breeding trials', Plant Breeding, vol. 129, no. 1, pp. 1-8.
- Piepho, H, Richter, C & Williams, E 2008, 'Nearest Neighbour Adjustment and Linear Variance Models in Plant Breeding Trials', Biometrical Journal, vol. 50, no. 2, pp. 164-189.
- Wood, J & Williams, E 2006, 'Multiple Randomizations. Discussion on paper by Brien, C.J. and Bailey', Journal of the Royal Statistical Society Series B, vol. 68, no. 4, pp. 571-609.
- Brondani, R, Williams, E, Brondani, C et al 2006, 'A microsatellite-based consensus linkage map for species of Eucalyptus and a novel set of 230 microsatellite markers for the genus', BMC Plant Biology, vol. 6, no. 20, pp. 1-16.
- Butcher, P, Williams, E, Whitaker, D et al 2002, 'Improving linkage analysis in outcrossed forest trees - an example from Acacia mangium', Theoretical and Applied Genetics, vol. 104, pp. 1185-1191.
- Ng, M & Williams, E 2001, 'Joint-regression analysis for incomplete two-way tables', Australian and New Zealand Journal of Statistics, vol. 43, no. 2, pp. 201-206.
- Pinyopusarerk, K & Williams, E 2000, 'Range-wide provenance variation in growth and morphological characteristics of Casuarina equisetifolia grown in Northern Australia', Forest Ecology and Management, vol. 134, no. 1-3, pp. 219-232.
- Williams, E & John, J 2000, 'Updating the average efficiency factor in a-designs', Biometrika, vol. 87, no. 3, pp. 695-699.
- John, J & Williams, E 1999, 'Partially-latinized designs', Statistics and Computing, vol. 9, no. 3, pp. 203-207.
- John, J, Russell, K, Williams, E et al 1999, 'Resolvable designs with unequal block sizes', Australian and New Zealand Journal of Statistics, vol. 41, no. 1, pp. 111-116.
- Williams, E & John, J 1999, 'Construction of resolvable designs with nested treatment structure', Biometrical Journal, vol. 41, no. 3, pp. 341-349.
- Williams, E & Fu, Y 1999, 'Comment - Enhanced heritabilities and best linear unbiased predictors through appropriate blocking of progeny trials', Canadian Journal of Forest Research, vol. 29, no. 10, pp. 1633-1634.
- Williams, E, John, J & Whitaker, D 1999, 'Example of block designs for plant and tree breeding trials', Australian and New Zealand Journal of Statistics, vol. 41, no. 3, pp. 277-284.
- Searle, S, Owen, J, Williams, E et al 1998, 'Variation in frost tolerance within two provenances of Acacia mearnsii De Wild', Australian Forestry, vol. 61, no. 1, pp. 1-6.
- John, J & Williams, E 1998, 't-latinized designs', Australian and New Zealand Journal of Statistics, vol. 40, no. 1, pp. 111-118.
- Bailey, R & Williams, E 2007, 'Optimal nested row-column designs with specified components', Biometrika, vol. 94, no. 2, pp. 459-468.
- Williams, E & John, J 2007, 'Construction of crossover designs with correlated errors', Australian and New Zealand Journal of Statistics, vol. 49, no. 1, pp. 61-68.
- Forde, C, Williams, E & O'Riordan, P 2007, 'Use of multi-stratum design and analysis in a sensory trial', Food Quality and Preference, vol. 18, no. 4, pp. 614-618.
- Williams, E, Gunn, B, Solomon, D et al 2007, 'Reliability of germination testing procedures and germination performance of stored Eucalyptus camaldulensis seed of different ages', Seed Science and Technology, vol. 35, no. 1, pp. 1-8.
- Nguyen, N & Williams, E 2006, 'Experimental designs for 2-colour cDNA microarray experiments', Applied Stochastic Models in Business and Industry, vol. 22, pp. 631 - 638.
- Doran, J, Baker, G, Williams, E et al 2006, 'Genetic gains in oil yields after nine years of breeding Melaleuca alternifolia (Myrtaceae)', Australian Journal of Experimental Agriculture, vol. 46, pp. 1521-1527.
- Piepho, H, Williams, E & Fleck, M 2006, 'A note on the analysis of designed experiments with complex treatment structure', HortScience, vol. 41, no. 2, pp. 446-452.
- Williams, E, John, J & Whitaker, D 2006, 'Construction of resolvable spatial row-column designs', Biometrics, vol. 62, no. 1, pp. 103-8.
- Piepho, H & Williams, E 2006, 'A comparison of experimental designs for selection in breeding trials with nested treatment structure', Theoretical and Applied Genetics, vol. 113, pp. 1505-13.
- Wright, C, John, J, Whitaker, D et al 2005, 'Construction of resolvable row-column designs based on contractions', Australian and New Zealand Journal of Statistics, vol. 47, no. 1, pp. 119-124.
- Pinyopusarerk, K, Williams, E, Luangviriyasaeng, V et al 2005, 'Variations in growth and morphological characteristics of Casuarina junghuhniana provenances grown in Thailand', Journal of Tropical Forest Science, vol. 17, no. 4, pp. 574-587.
- O'Riordan, P, Baxter, I, McConchie, C et al 2005, 'Consumer sensory preferences for macadamia nuts', Acta Horticulturae, vol. 687, pp. 99-105.
- Harwood, C, Thinh, H, Quang, T et al 2004, 'The effect of inbreeding on early growth of acacia mangium in Vietnam', Silvae Genetica, vol. 52, pp. 45-88.
- Thamarus, K, Groom, K, Bradley, A et al 2004, 'Identification of quantitative trait loci for wood and fibre properties in two full-sib pedigrees of Eucalyptus globulus', Theoretical and Applied Genetics, vol. 109, pp. 856-864.
- Williams, E & John, J 2003, 'A note on the design of unreplicated trials', Biometrical Journal, vol. 45, no. 6, pp. 751-7.
- John, J, Ruggiero, K & Williams, E 2002, 'αn-Designs', Australian and New Zealand Journal of Statistics, vol. 44, no. 4, pp. 457-465.
- Butcher, P & Williams, E 2002, 'Variation in outcrossing rates and growth in Eucalyptus camaldulensis from the Petford Region, Queensland; evidence of outbreeding depression', Silvae Genetica, vol. 50, pp. 6-12.
- Kalinganire, A, Pinyopusarerk, K & Williams, E 2002, 'Geographic variation in seedling morphology of Chukrasia species', Australian Journal of Botany, vol. 50, pp. 319-330.
- Ng, M & Williams, E 2001, 'Joint-regression Analysis for Incomplete Two-way Tables', Australian and New Zealand Journal of Statistics, vol. 43, no. 2, pp. 201-206.
