From Genome Analysis Wiki
Jump to navigationJump to search
712 bytes added
, 11:47, 14 May 2013
Line 77: |
Line 77: |
| | | |
| A. Use [[EPACTS]] software pipeline for running EMMAX with VCF files, including the implementations of gene-level burden tests. | | A. Use [[EPACTS]] software pipeline for running EMMAX with VCF files, including the implementations of gene-level burden tests. |
| + | |
| + | === Encoding Case-control Phenotypes === |
| + | Q. I would like to run EMMAX for case-control phenotypes. How can I encode the phenotypes? |
| + | |
| + | A. If you encode case/control to 2/1, you will be able to run case-control analysis. Because EMMAX is based on linear mixed model rather than generalized mixed model, the effect size (beta) would not be meaningful, but the p-values should be reliable (unless case/control counts are highly imbalanced). |
| + | |
| + | === IBS matrix or BN matrix? === |
| + | Q. Between IBS and BN matrix, which one is preferred? |
| + | |
| + | A. We believe that BN matrix is more robust to construct the empirical kinship matrix. But we recommend to use call rate 95% threshold and MAF threshold of 0.01 when preparing the data. |
| | | |
| === Citing EMMAX === | | === Citing EMMAX === |