UPGMA

Input sequences, either unaligned in FASTA format or aligned in MSF or Clustal format



OR input distance matrix

Format example:
A     0 2 4 6 
B     2 0 4 6 
C     4 4 0 6 
D     6 6 6 0 
where the OTUs are A, B, C and D. The columns from left to right correspond to the same OTUs.