LAPD stands for Linkage Analysis Using Pedigree Data. This program allows to estimate maximum likelihood allele and two-locus haplotype frequencies, using an Expectation-Maximization algorithm, taking into account family relationships of the individuals. The authors are Laurent Excoffier and Monty Slatkin.
Download
The software can be downloaded directly
here.
Citation
Excoffier, L. and Slatkin, M. (1998) Incorporating genotypes of relatives into a test of linkage disequilibrium, Am. J. Hum. Genet. 162:171-180.
