Table 2 SNP calling measurements for Crossbow experiments using simulated reads from human chromosomes 22 and X
| Â | Chromosome 22 | Chromosome X | ||||
|---|---|---|---|---|---|---|
| Â | True number of sites | Crossbow sensitivity | Crossbow precision | True number of sites | Crossbow sensitivity | Crossbow precision |
All SNP sites | 46,586 | 99.0% | 99.1% | 102,219 | 99.0% | 99.6% |
   Only HapMap SNP sites | 36,096 | 99.8% | 99.9% | 71,976 | 99.9% | 99.9% |
   Only novel SNP sites | 10,490 | 96.3% | 96.3% | 30,243 | 96.8% | 98.8% |
   Only homozygous | 14,858 | 98.7% | 99.9% | NA | NA | NA |
   Only heterozygous | 31,728 | 99.2% | 98.8% | NA | NA | NA |
   Only novel het | 6,967 | 96.6% | 94.6% | NA | NA | NA |
   All other | 39,619 | 99.4% | 99.9% | NA | NA | NA |