Entering edit mode
9.9 years ago
ddzhangzz
▴
90
I would conduct a GWAS using plink with covariates and gxe terms. Here is part of phenotypic data:
FID IID luperml2wk18 luperml2chg rotaarm sex 1 1001 1001 7.008 6.4601 1 2 2 1002 1002 1.823 1.6745 1 1 3 1003 1003 2.706 1.2638 1 2 4 1004 1004 3.316 3.5770 0 1 5 1005 1005 1.095 -0.2104 0 1 6 1007 1007 1.369 1.1616 0 2 ...
I would like a model such that:
luperml2wk18=SNPi+sex+rotaarm+SNPi*rotaarm
where sex
is a covariate and rotaarm
is dummy variable of treatment/placebo and SNPi*rotaarm
is a gxe term. I am confused whether I should take rotaarm as a covariate using --covar
or a stratification using --within
. I have tried this:
plink --noweb --bfile $GENO --allow-no-sex --pheno $PHENO --pheno-name luperml2wk18 \
--covar $PHENO --covar-name sex\
--bd --within rotaarm.txt\
--gxe --covar rotaarm.txt \
--linear --out IgA_logwk18_Malchip_gxe
But I got error message say:
** Unused command line option: --covar ** Unused command line option: rotaarm.txt
Why can't I include the --covar
here?