Transmission Ratio Distortion

Transmission Ratio Distortion (TRD) is a genetic phenomenon where the two alleles from either parent are not transmitted to the offspring at the expected 1:1 ratio under Mendelian inheritance, leading to spurious signals in genetic association studies. Functions in this package are developed to account for this phenomenon using loglinear model and Transmission Disequilibrium Test (TDT). Some population information can also be calculated.


Reference manual

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1.1 by Lam Opal Huang, 5 years ago

Browse source code at

Authors: Lam Opal Huang

Documentation:   PDF Manual  

GPL (>= 2) license

Depends on Rlab

See at CRAN