Magnus Dehli Vigeland
2012-Feb-03 11:24 UTC
[R] [R-pkgs] Major update: paramlink version 0.6-1
Dear all, I'd like to introduce the paramlink package, offering parametric linkage analysis in R, as well as other likelihood-based pedigree analyses. While a rudimentary version of the package has existed for a while, it was never properly introduced to this forum. The present version is a major update with new and improved functions. Features: * Singlepoint LOD scores for simple/complex/inbred pedigrees (implementing the Elston-Stewart algorithm). Allows partial genotypes (i.e. with one missing allele) * Multipoint analysis is provided through a wrapper for MERLIN. The wrapper creates all necessary files automatically, and makes it easy to re-run analysis under different models or with subsets of pedigree members/markers. * Power analysis for linkage (implementing the simulation algorithm of SLINK). * Nice pedigree plots produced by importing the kinship2 package. Includes flexible plotting of marker genotypes. * LOD score plots. * Reads and writes ped/map/dat/freq/model files in MERLIN format. * Computation of genotype probability distributions, unconditional or conditional on partial marker data: - For a single marker, the joint genotype distribution of any number of family members. - For a single individual, the joint genotype distribution of two linked markers. * Many utility functions for creating/modifying pedigrees. This is usually quicker than writing pedigree files from scratch in a text editor. There is a vignette with an introduction to the main features: http://cran.r-project.org/web/packages/paramlink/vignettes/paramlink.pdf Feedback, bug reports and feature requests are most welcome. Regards, Magnus -- Magnus Dehli Vigeland, PhD Department of Medical Genetics University of Oslo Norway E-mail: magnusdv at medisin.uio.no Phone: +47 22 11 98 79 _______________________________________________ R-packages mailing list R-packages at r-project.org https://stat.ethz.ch/mailman/listinfo/r-packages