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, 11:03, 11 April 2013
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− | Hardy Weinberg equilibrium is expected in a panmictic population. The following formulation is a likelihood ratio test statistic that incorporates the genotype uncertainty via genotype likelihoods. | + | Hardy Weinberg equilibrium is expected in a panmictic population. The following formulation is a likelihood ratio test statistic that incorporates genotype uncertainty via genotype likelihoods. |
| <math>P(R_{k}|\textbf{p})</math> is the probability of observing the reads for individual <math>k</math> assuming that a locus observes HWE. | | <math>P(R_{k}|\textbf{p})</math> is the probability of observing the reads for individual <math>k</math> assuming that a locus observes HWE. |
| <math>P(R_{k}|\textbf{g})</math> is the probability of observing the reads for individual <math>k</math> assuming that a locus does not observe HWE. | | <math>P(R_{k}|\textbf{g})</math> is the probability of observing the reads for individual <math>k</math> assuming that a locus does not observe HWE. |
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| <math> | | <math> |
| \begin{align} | | \begin{align} |
− | L(R|g) & = & \frac{\prod_{k}{P(R_{k}|\textbf{p})}} | + | L(R|g) & = \frac{\prod_{k}{P(R_{k}|\textbf{p})}} |
| {\prod_{k}{P(R_{k}|\textbf{g})}} \\ | | {\prod_{k}{P(R_{k}|\textbf{g})}} \\ |
− | & = & \frac{\prod_{k}{\sum_{i,j}{P(R_{k}, G_{i,j}|\textbf{p})}}} | + | & = \frac{\prod_{k}{\sum_{i,j}{P(R_{k}, G_{i,j}|\textbf{p})}}} |
| {\prod_{k}{\sum_{i,j}{P(R_{k}, G_{i,j}|\textbf{g})}}} \\ | | {\prod_{k}{\sum_{i,j}{P(R_{k}, G_{i,j}|\textbf{g})}}} \\ |
− | & = & \frac{\prod_{k}{\sum_{i,j}{P(R_{k} |G_{i,j} )P(G_{i,j}|\textbf{p})}}} | + | & = \frac{\prod_{k}{\sum_{i,j}{P(R_{k} |G_{i,j} )P(G_{i,j}|\textbf{p})}}} |
| {\prod_{k}{\sum_{i,j}{P(R_{k} |G_{i,j})P(G_{i,j}|\textbf{g})}}} \\ | | {\prod_{k}{\sum_{i,j}{P(R_{k} |G_{i,j})P(G_{i,j}|\textbf{g})}}} \\ |
| \end{align} | | \end{align} |