I am looking at extracting genetic variants associated with physical activity (to be used as exposure) from gwas id ebi-a-GCST006097. The gwas has nsnp = 11808007
library(TwoSampleMR)
library(ieugwasr)
gwasinfo ("ebi-a-GCST006097")
However, when I extract this, I end up with an nsnp = 19
ao <- available_outcomes()
PA.data <- extract_instruments(outcomes = 'ebi-a-GCST006097')
This means that I am unable to carry out harmonization as none of this 19 snps are in my outcome data (which has 3 snps). I am not sure what I am doing wrong here. I have looked at all relevant tutorial I can see online including one from mrcieu.github.io/TwoSampleMR. Any assistance will be helpful.