I'm the creator of the MungeSumstats Bioconductor package in which we use VariantAnnotation::writeVcf as an output options for the formatted sumstats. I want to align the formatting of our sumstats to IEU OpenGWAS VCF, part of which means adding the RSIDs to the INFO column in the VCF. However, I can't seem to populate INFO with VariantAnnotation::writeVcf. Is there any way to do this?
#get example data
sumstats_dt <- MungeSumstats::formatted_example()
#convert to VRanges
gr <- to_granges(sumstats_dt)
message("Converting summary statistics to VRanges.")
gr$dummy <- "GWAS"
vr <- VariantAnnotation::makeVRangesFromGRanges(gr,
ref.field = "A1",
alt.field = "A2",
keep.extra.columns = TRUE,
sampleNames.field = "dummy"
)
#make SNP field into INFO
vr$INFO <- paste0("RSID=",vr$SNP)
vr$SNP <- NULL
#Output as VCF
VariantAnnotation::writeVcf(
obj = vr,
### Must supply filename without compression suffix
filename ="~/Downloads/test_vcf.vcf",
index = FALSE
)
#inspect
print(readLines("~/Downloads/test_vcf.vcf",100))
#INFO not populated
Hi ,
I'm the creator of the MungeSumstats Bioconductor package in which we use VariantAnnotation::writeVcf as an output options for the formatted sumstats. I want to align the formatting of our sumstats to IEU OpenGWAS VCF, part of which means adding the RSIDs to the INFO column in the VCF. However, I can't seem to populate INFO with VariantAnnotation::writeVcf. Is there any way to do this?
An example: