Figure 5From: Inferring within-patient HIV-1 evolutionary dynamics under anti-HIV therapy using serial virus samples with vSPAClustering procedure of vSPA. (a) Illustration of the clustering procedure in vSPA. The big circles indicate the clusters classified using the cutoff value of the correlation coefficient, whereas the small solid circles represent individual variants, distinguished by lower-case letters. (b) The big square represents the cluster formed by merging clusters that share more than 50% of viral variants.Back to article page