Research output per year
Research output per year
Search results
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1996
On modelling overdispersion of counts
Poortema, K., 1996, Enschede: Universiteit Twente. 22 p.Research output: Book/Report › Report › Professional
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1992
On Estimation and testing in poisson regression models with over-dispersion
Poortema, K., 1992, University of Twente, Faculty of Mathematical Sciences. 14 p. (Memorandum Faculty of Mathematical Sciences; no. 1083)Research output: Book/Report › Report › Professional
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1991
A two-stage estimator for generalized linear models with nonconstant dispersion parameter
Poortema, K., 1991, University of Twente, Faculty of Mathematical Sciences. 13 p. (Memorandum Faculty of Mathematical Sciences; no. 1012)Research output: Book/Report › Report › Professional
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1990
Estimation in a growth study with irregular measurement times
Poortema, K., Tamminga, R. Y. J. & Schaafsma, W., 1990, University of Twente, Faculty of Applied Mathematics. 14 p. (Memorandum Faculty of Applied Mathematics; no. 852)Research output: Book/Report › Report › Professional
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Estimation of expectations and covariance matrices with linear structure
Poortema, K., 1990, University of Twente, Faculty of Applied Mathematics. 28 p. (Memorandum Faculty of Applied Mathematics; no. 866)Research output: Book/Report › Report › Professional