--  HapMap data release #4, February 2004  --

Overall summary: 

 Total number of genotyped SNPs released:    324,613
               Total number of genotypes: 29,215,170


QC-analysis summary: 

        Total assays w/ gt's:    347,881
 >20% missing data per plate:      1,814
          <0.001 HWE P-Value:        148
  >1 Mendelian Inconsistency:        272
    >1 duplicate discrepancy:         42
                Not analyzed:     20,992
       Genotype success rate:      99.3%

NB the last category, 'Not analyzed', includes among other things
genotypes for SNPs  that do not map to the current build of the
reference genome sequence (but did at the time of picking for 
genotyping). Genotypes for these SNPs may be released at a later 
date if the SNPs get mapped to a future reference sequence assembly.


Release notes:
-new data from centers BGI, IMSUT-RIKEN, MCGILL-GQIC, UCSF-WU and WICGR
-minor allele frequency file replaced by a more complete allele frequency file
-MAF column added to genotype frequency file (to make it match the 
 output from the GBrowse gt-freq dumper)