Systems, methods and apparatus for an automated analysis of a collection of melt curves is provided. The analysis can identify certain characteristics of double stranded nucleotide sequences (e.g. DNA or other nucleotide sequences) which were melted. For example, a variation (e.g. a mutation) in the sequences (also called amplicons) may be determined from the analysis. The amplicons may be amplified via any amplification mechanism, such as PCR or Ligase chain reaction (LCR). The automated analysis can include identifying a melt region, normalizing a melt curve, and clustering melt curves.