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Figure 3 | BMC Evolutionary Biology

Figure 3

From: FLU, an amino acid substitution model for influenza proteins

Figure 3

The bubbles display the relative differences between exchangeability coefficients in FLU and HIVb (left), and FLU with LG (right). On the left side, each bubble represents the value of (FLU ij - HIVb ij )/(FLU ij + HIVb ij ) where FLU ij (HIVb ij ) is the exchangeability coefficient in FLU (HIVb). Values 1/3 and 2/3 mean that the FLU coefficient is 2 and 5 times as large as that of HIVb, respectively. Values -1/3 and -2/3 mean that HIVb is 2 and 5 times larger than FLU, respectively. Similar explanations can be also given on the right side, but now between FLU and LG models.

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