Abstracts

Abstracts for Biometrics/NZSA 2001

Changing information needs in environmental and biological statistics

Jennifer Brown How to monitor a population when there are too few animals to count
Robert Denham Unmixing polygons in resource mapping: a Bayesian integration of expert opinion and data
Kerrie Mengersen An indifference zone approach to testing for a two-component normal mixture
Chase O'Brien A number of new national level environmental series are being developed to meet environmental information needs
Gordon Smyth Trend analyses for ambient water quality data
Tanja Srebotnjak Multiple imputations of missing data in the environmental sustainability index - pain or gain?

Statistics in the post-genome era

Peter Alspach Calculation of the power of tests for QTL detection
Melanie Bahlo Double recombinants are poor surrogate markers for genotyping errors
Roderick D. Ball Bayesian methods for QTL mapping based on model selection: approximate analysis using the Bayesian Information Criterion.
Ben Bolstad Low-level analysis of Affymetrix GeneChip data
Ken G Dodds Using a backcross to single animal for a QTL confirmation experiment
Bonnie Law Match probabilities in admixed population
Y. Pittelkow Challenges in the statistical analysis of high density microarrays
Ryan Sherriff Modelling genetically based animal breeding
H. Nihal De Silva A strategy for sampling cDNA libraries for detecting 'novel' EST seqences
Terry Speed Multiple testing in large-scale gene expression experiments
Valeri T. Stefanov Computation of probabilities associated with continuous genome data from full-sibs
Zhao-Bang Zeng QTL mapping and genetic architecture of quantitative traits

Bioinformatics

Sharon Browning Probabilities for genetic data from pedigrees
Jisheng Cui Distribution of family history of a disease as a function of mode of inheritance, genetic relative hazard, allele frequency and disease status of the proband, with application to female breast cancer
Greg Gibson Mixed model analysis of contributions to transcriptional variance
Peter Johnstone The application of mixed models to microarray experiments
Geoff McLachlan Mixture model-based clustering of microarray expression data
Natalie Thorne Towards an assay for ionizing radiation sensitivity
Bruce Weir Multi-allelic measures of inbreeding
Yee Hwa Yang Some aspects of the design and analysis of gene expression microarray experiments

Applied statistics

Qasim Al-Shboul Characterization of the log-logistic distribution through recurrence relations of single and product moments of order statistics
Marti J. Anderson A new non-parametric test for heterogeneity of multivariate dispersions
Richard Arnold Bayesian spectral analysis of white dwarf light curves
Brian Bull Catch-at-age data from New Zealand fisheries
Kym Butler Counting precision for spinning fineness under non-Gaussian distributions
Kristie Carter Modelling birthweights with different sampling rates: a comparison of three procedures in SAS.
John Crequer A Kalman filter approach to benchmarking
Michelle Dalrymple Examining the relationship between SIDS and climate using hurdle, ZIP, and finite mixture models
Robert Davies Statistical analysis of road surface data
Judith Dennis Estimated roundwood removals from New Zealand forests: where does all the wood go?
David Fletcher Modelling skewed data with many zeros: a simple approach combining ordinary and logistic regression
Chris Francis Simultaneous testing for mean and variance differences with nasty data
Wanzhen Gao Logistic discriminant analysis to clinical practice: the development of clinical score to predict failure of reperfusion following thrombolytic therapy for acute myocardial infarction
Arthur R Gilmour Prediction in linear mixed models
A. Jonathan R. Godfrey Two-stage imputation of missing genotype-by-environment data
Patrick Graham Predictive causal inference
Murray Hannah The anatomy of dairy farm phosphorus loss
John Haywood Improved modelling of evolving seasonal and cyclical time series
Harold Henderson Visualising data
Graham Hepworth The problem of ordering outcomes in deriving exact confidence intervals
Irene Hudson A study of spatio-temporal variation of Eucalyptus nitens fibre morphology – a multivariate clustering and nonlinear time series approach
Wendy A Humphries Hepatitis B carriers - are they at higher risk of Type II diabetes?
Lyn Hunt Fitting a mixture model to three-way data with categorical and continuous variables and missing information
Geoff Jones Inference for the two-component error model
Valeria Kazakova Decomposition and standardisation of rate differences
Robert King Characterising the shape of the generalised lambda distribution.
Frances Krsinich Using microdata noise to protect tabulations
Alan Lee Construction of predictors in regression using Empirical Bayes
Tony Lewis Making sense of the conflicting results arising from the analysis of road safety data
Ray Littler Fitness for purpose of process measurements
Ivy Liu Describing ordinal odds ratios for stratified r x c tables
Dongwen Luo A new algorithm for fitting generalized linear model
John Maindonald Data miners should know about multilevel models!
Graham McBride Behaviour of p-values under point, one-sided and interval hypotheses
Russell Millar As few as 3 in a 100 snapper survive fishing over the summer.
Meei Ng Quadratic extension of a joint-regression model
Varsha Parag Modeling missing socioeconomic status in a cohort study
Sandra Pattison Large databases: design, data collection and the statistician's role.
Tony Pettitt Statistical modelling for complex binary data in biometrics
Dave Saville Teaching the gospel of statistics
Judi Scheffer Dealing with missing data
Alastair Scott Estimating interviewer and observer effects for binary responses
David Scott Fitting the hyperbolic distribution to grain size data
Jean Thompson “Real world” statistical data and the role of the consultant statistician
Robin Turner Does brain function underlie personality differences or vice versa?
Teena West Implementing and comparing statistical models in a clinical setting
Ian Westbrooke Using distance sampling to assess the impact of a possum control operation on tomtits
Robin Willink An exact frequentist analysis for the Behrens-Fisher problem for solution with general sample sizes
Phil Wright The design and analysis of choice models
Ilze Ziedins Markov random field models of multicasting in tree networks
Alexander B Zwart Pseudorandom number generation

Experimental design and analysis

Chris Brien Design of experiments involving field and laboratory phases
Brenton R. Clarke On a representation of orthogonal components in ANOVA and power of a test of heteroscedasticity in the randomised complete block design.
G. Peter Clarke Mixed models and experimental design for variety trials
Mario D'Antuono R or G-structures for split-plot designs?
Arden Miller The analysis of unreplicated experiments from a geometric perspective
Warren J Muller The role of fire in managing an endangered plant species: design and analysis of a long-term experiment
K.G. Russell The analysis of data from a BACI study
K.T. Stefanova Issues in the design of unreplicated trials
Kurt Ulm Identification of responders and non-responders in clinical trials using the "Bump Hunting" procedure
D. Whitaker CycDesigN Version 2.0: a package for the computer generation of experimental designs

Statistics of resource selection

Bryan F.J. Manly Simultaneous estimation of population size and habitat selection using line transect sampling

Capture-recapture

John T. Huakau Capture-recapture methods in epidemiology a comparison of list mismatch methods using a diabetes case study
Darryl I. MacKenzie Assessing the fit of mark-recapture models with individual covariates: the CUSUM residual plot
Shirley Pledger Heterogeneity and finite mixtures in capture-recapture models

Poster sessions

Maaike Bendall Standard errors for biplots
Jisheng Cui After BRCA1 and BRCA2 - what next? Multifactorial segregation analyses of three-generation, population-based Australian female breast cancer families
Jisheng Cui Segregation analyses of 1476 population-based Australian families affected by prostate cancer
Wanzhen Gao The application of survival analysis to LIPID study: the effect of socio-economic status on cardiovascular death
Vince Matassa Statistical methods for partitioning genotype-by-environment interactions: an empirical evaluation of Muir's method using a GenStat program
Vince Matassa Comparison of augmented and spatial unreplicated experimental designs in sugarcane breeding under a spatial model – a simulation study
John Reynolds Zero-inflated data in mixed models: Tobit Analysis, REML and the EM Algorithm
K.G. Russell Finding an optimal response surface design for binomial data: early steps towards a solution
Teena West Modelling coronary lesion progression

Discrete data modelling and analysis

Malcolm Faddy Discrete data modelling and analysis

Bayesian methods

Greg Arnold Squeezing blood from stones - can Bayes help?
Claude Belisle Convergence properties of Gibbs and related samplers
Samuel Manda Bayesian inference for multivariate survival data with time dependent frailties
Judith L. McWhirter Catching the Bayesian wave: an MCMC approach to modelling pulsatile data.
Renate Meyer Nonparametric Bayesian modelling of stratified survival data using mixtures
Wayne Stewart Sensitivity to the prior using SIR
Alain C. Vandal An MCMC approach to linear rank score generation for censored data
Robert Ware Approximation of posterior means and variances of posterior discrete distributions characterised as digitised normal distributions

Biostatistics

Lynne Giles The effects of social networks on disability in older people
Mike Kenward Stochastic imputation methods for modelling incomplete longitudinal data
Marilyn Morphet Comparing the efficacy of complex HIV regimes using an observational database
John Petkov The modelling of spinal defects using multivariate statistical techniques
Megan Pledger Nonlinear mixed effects modelling of plasma melatonin in older people
Andrea Rotnitzky Models for conducting sensitivity analysis of longitudinal data with monotone missing patterns
Said Shahtahmasebi The correlates of teenage smoking: some problems with interpreting the evidence
Khangelani Zuma Statistical models of 'oscillatory' migration and the spread of HIV/STDs