I am using Pindel to identify indels from tumour vs control. I would like to get the somatic p_values for the INDELs called using -so.
(-so/--somatic_p compute somatic p value when two samples are present, assume the order is normal and tumor. (default false))

my code:

pindel2vcf -P ../pindelfile -r ../ref.fasta -R hg19 -d 20160905 -so TRUE -v ../outputfile.vcf

I keep getting the error: unknown argument: –so

Can someone please help with this?
Many thanks