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The VERBOSE option is enabled with the VERBOSE ON command. When this option is enabled METAL will print details of each analyzed SNP for each input file. Unless you use an appropriate filter, this option can easily generate an unmanageable amount of ouput.

Details for each SNP will be output after aligning alleles and strands to the same strand, but before any genomic control correction is applied. In sample size based analysis, the sample size, z-score and p-value will be output. In standard error based analyses, effect sizes and standard errors are output instead. In either case, allele frequency information will also be output if available.