parser.add_argument('--R2-threshold',help="R square (imputation quality) threshold bellow which SNPs are filtered from the output",default=0.6)
parser.add_argument("--ld-type",help="Ld can be supplied as plink command --ld-snp-list output files (see raiss.ld_matrix.launch_plink_ld to compute these data using plink) or as a couple of a scipy sparse matrix (.npz )and an .csv containing SNPs index",default="plink")
parser.add_argument('--ref-panel-suffix',help="end of the suffix for the reference panel files",default=".eur.1pct.bim")
parser.add_argument('--ref-panel-suffix',help="end of the suffix for the reference panel files",default=".bim")