Original Program's handling of flipped reference alleles operates for dosage files encoded -1, 0, 1 (continuous). This update would handle SNPs with flipped reference alleles with dosages encoded 0, 1, 2 (continuous). The 0:2 dosage format is used in PrediXcan example dosage files and produced if using the convert_plink_to_dosage.py script.
Hope this is helpful,
-Hannah C Ainsworth, Kip D Zimmerman, Carl D Langefeld from Wake Forest's Center for Public Health Genomics
Original Program's handling of flipped reference alleles operates for dosage files encoded -1, 0, 1 (continuous). This update would handle SNPs with flipped reference alleles with dosages encoded 0, 1, 2 (continuous). The 0:2 dosage format is used in PrediXcan example dosage files and produced if using the convert_plink_to_dosage.py script.
Hope this is helpful,
-Hannah C Ainsworth, Kip D Zimmerman, Carl D Langefeld from Wake Forest's Center for Public Health Genomics