منابع مشابه
Bivariate Qq-plots and Spider Web Plots
Abstract: QQ-plots are extremely useful in univariate data analysis. In this article, Koltchinskii (1997) and Chaudhuri’s (1996) definition of multivariate quantile is used to develop analogous plots for bivariate data. Bivariate qq-plots are exhibited for comparing a sample to a given population distribution (the bivariate normal), and for comparing two or more bivariate samples. The plots are...
متن کاملBehavior of QQ-Plots and Genomic Control in Studies of Gene-Environment Interaction
Genome-wide association studies of gene-environment interaction (GxE GWAS) are becoming popular. As with main effects GWAS, quantile-quantile plots (QQ-plots) and Genomic Control are being used to assess and correct for population substructure. However, in G x E work these approaches can be seriously misleading, as we illustrate; QQ-plots may give strong indications of substructure when absolut...
متن کاملPolarimetry of QQ
Printed 10 September 1997 Polarimetry of QQ Vul Mark Cropper1;2 1 Mullard Space Science Laboratory, University College London, Holmbury St. Mary, Dorking, Surrey RH5 6NT 2 Dept. of Astronomy, University of Cape Town, Rondebosch 7700, South Africa. Received: ABSTRACT This paper presents an investigation of the polarisation behaviour of the AM Her system QQ Vul at several epochs over 3 years. The...
متن کامل697-701-Tozer QQ
Viral hepatitis is one of the most important liver diseases in the world. Duration of hepatitis C virus (HCV) infection and response to standard therapy is strongly related to HCV genotypes. Geographical distribution of HCV genotypes is also important for epidemiological studies. We aimed to determine the distribution of HCV genotypes and their prevalence in Eastern Turkey. Fifty eight Anti-HCV...
متن کاملChiral Symmetry and Hyperfine qq Splittings
We briefly review theoretical calculations for the pseudoscalar-vector meson hyperfine splitting with no open flavor and also report a many body field theoretical effort to assess the impact of chiral symmetry in the choice of effective potentials for relativistic quark models. Our calculations predict the missing ηb meson to have mass near 9400 MeV . The radial excitation ηc(2S) is in agreemen...
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ژورنال
عنوان ژورنال: Statistical Science
سال: 2004
ISSN: 0883-4237
DOI: 10.1214/088342304000000512