✦ LIBER ✦

Estimation of Individual Growth Curves by Empirically Weighted Least Squares

✍ Scribed by W. C. Louv

Publisher: John Wiley and Sons
Year: 1987
Tongue: English
Weight: 580 KB
Volume: 29
Category: Article
ISSN: 0323-3847
DOI: 10.1002/bimj.4710290116

No coin nor oath required. For personal study only.

✦ Synopsis

The simultaneous estimation of individual growth curvea and a mean gtowth curve is accomplished by weighted least squares. A polynomial curve is fitted for each individual and the polynomial parameters are linear functions of parameters corresponding to covariatee. A simple, computationally efficient variance-covariance estimator is derived. The resaltant estimate is used in the weighted least squares estimation. The results are compared to empirical B a p estimation.

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Development of individual growth curve s

Development of individual growth curve standards for estimated fetal weight: I. Weight estimation procedure

✍ Russell L. Deter; Ivar K. Rossavik; Ronald B. Harrist 📂 Article 📅 1988 🏛 John Wiley and Sons 🌐 English ⚖ 852 KB

In this investigation the weight estimation procedure of Rossavik was reassessed with particular emphasis on parameter estimation and performance over a wide weight range. Using a cross-sectional data set (193 patients), a longitudinal data set (20 patients), and an iterative procedure, parameter es