Hi,
I am new to PLINK and I am having trouble using one of the commands. I am trying to perform logistic regression analysis on several bed, bim and fam files. Here is the command I put in:
plink --bfile chr22.dose --logistic --covar COPD_NHW_Phenotype_PC_Final.txt --covar-name FamilyID,PatientID, FatherID, MotherID, Sex, Affection, Status, Age_Enroll, EV=6.02683, EV=2.8176, EV=1.74892, EV=1.65407, EV=1.55682, EV=1.46005, EV=1.44006, EV=1.39075, EV=1.19516, EV=1.17052, --out chr22.dose.output
I get back the following message and error:
Logging to chr22.dose.output.log.
Options in effect:
--bfile chr22.dose
--covar COPD_NHW_Phenotype_PC_Final.txt
--covar-name FamilyID,PatientID, FatherID, MotherID, Sex, Affection, Status, Age_Enroll, EV=6.02683, EV=2.8176, EV=1.74892, EV=1.65407, EV=1.55682, EV=1.46005, EV=1.44006, EV=1.39075, EV=1.19516, EV=1.17052,
--logistic
--out chr22.dose.output
516866 MB RAM detected; reserving 258433 MB for main workspace.
Allocated 145368 MB successfully, after larger attempt(s) failed.
652195 variants loaded from .bim file.
5269 people (0 males, 0 females, 5269 ambiguous) loaded from .fam.
Ambiguous sex IDs written to chr22.dose.output.nosex .
Using 1 thread (no multithreaded calculations invoked.
Error: --covar file doesn't have a header line for --covar-name.
I've searched online and I can't find anything on this error. Can anyone please help me out?
Diego