Plots for examination of univariate twin data.
We discuss informative plots for univariate twin data that can be used in conjunction with twin data analyses. The plots are useful for spotting outliers, spotting possible single gene effects, and displaying the contribution of individual twin pairs to the fit of genetic models of the data. We illustrate the use of the plots on bone mineral data, and present programs for generating the plots in SAS.
Williams
C J
CJ
Department of Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis.
Christian
J C
JC
D003627:Data Interpretation, Statistical; D006801:Humans; D016013:Likelihood Functions; D008432:Mathematical Computing; D008957:Models, Genetic; D011897:Random Allocation; D012985:Software Design; D014427:Twins / Q000235:genetics*