Question

Question Posted 03/13/24:
I downloaded the ADNI genetic data to do GWAS research, I get the data in plink format where I was able to get the three files of .bed, .bim and .fam, however as the fam file has the individuals info like the id the sex and other info, I know that the last attribute is the trait or phenotype which should be either like 1 (cases) and 2 (controls), however the values that i found is -9 which means it's missing so can I please get some advise if i am downloading the correct data or what I should do
Response posted 03/13/24 by Kwangsik Nho:
In the plink files, you need to update the diagnosis information based on your research strategy. Currently the diagnosis information was missed in the plink files.
Go back to list of topics >
2024 Alzheimer’s Disease Neuroimaging Initiative
This website is funded by the Alzheimer’s Disease Neuroimaging Initiative