Analyzing spatial count data, with an application to weed counts (2007)
Kruijer, W., Stein, A., Schaafsma, W., Heijting, S.
Count data on a lattice may arise in observational studies of ecological phenomena. In this paper a hierarchical spatial model is used to analyze weed counts. Anisotropy is introduced, and a...
Estimating a frequency unseen: an example from ornithology (2005)
Albers, C.J., De Roos, G. Th., Schaafsma, W.
The second author is involved in a capture–mark–recapture study of some wader species. Part of his program deals with resight observations. On a particular day he visually inspects a fairly...
Trying to resolve the two-envelope problem (2005)
C. Albers, B.P. Kooi, W. Schaafsma
After explaining the well-known two-envelope 'paradox' by indicating the fallacy involved, we consider the two-envelope 'problem' of evaluating the 'factual' information provided to us in the form of...
Reflections on Fourteen Cryptic Issues Concerning the Nature of Statistical Inference (2003)
Salomé, D., Schaafsma, W., Steerneman, A. G. M., Willems, J. C., Cox, D. R.
The present paper provides the original formulation and a joint response of a group of statistically trained scientists statisticians to fourteen cryptic issues for discussion, which were handed out...
Estimating a density by adapting an initial guess (2003)
De Bruin et al. (Comput. Statist. Data Anal. 30 (1999) 19) provide a unique method to estimate the probability density f from a sample, given an initial guess ψ of f. An advantage of their estimate...
Reflections on fourteen cryptic issues concerning the nature of statistical inference (2003)
Salome,D., Schaafsma,W., Steerneman,A. G. M., Willems,J. C., Cox,D. R.
The present paper provides the original formulation and a joint response of a group of statistically trained scientists to fourteen cryptic issues for discussion, which were handed out to the public...
Reflections on fourteen cryptic issues concerning the nature of statistical inference (2003)
Salome, D., Schaafsma, W., Steerneman, A. G. M., Willems, J. C., Cox, D. R.
The present paper provides the original formulation and a joint response of a group of statistically trained scientists to fourteen cryptic issues for discussion, which were handed out to the public...
Reflections on fourteen cryptic issues concerning the nature of statistical inference (2003)
Salom?, D, Schaafsma, W, Steerneman, A, Cox, D
\emph{International Statistical Review}, A Chinese translation will appear in Statistics and Information Tribune. , vol. 71, Jun. 2003
How to assign probabilities if you must (2001)
Empirical evidence can sometimes be incorporated in a probabilistic analysis by conditioning with respect to the observations. Usually, the underlying probability distribution and also the...
Interval estimates for posterior probabilities in a multivariate normal classification model
Ambergen, A. W., Schaafsma, W.
This paper is devoted to the asymptotic distribution of estimators for the posterior probability that a p-dimensional observation vector originates from one of k normal distributions with identical...