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R functions...

• logLinear.R This is the primary function to analyze case-parent triad data. Missing data inference is via methods described in Bergemann, TL and Huang, Z (2009) Human Heredity, 68: 268-277. This function also requires the users to source triadMultinomial.R and either fullZip.R and reducedZip.R or full.R and reduced.R.

• help file This is the corresponding help file in standard R format

• logLinearEM.R This is an older version of the function to analyze case-parent triad data. Missing data imputation is via the EM algorithm.

• help file This is the corresponding help file in standard R format

• Sample data

• simTrios.R This function simulates case-parent triad data

• help file This is the corresponding help file in standard R format

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These programs were written by Tracy L. Bergemann, PhD and Zhi Huang, MS in the Division of Biostatistics at the University of Minnesota. Please give proper acknowledgement for their use.

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