How FigTree calculates "Node Ages" node labels?

[AlesBucek]

Hi! I imported nexus-formatted tree into FigTre v1.4.4. When I display the "Node Ages" node label information, the value does not match any of the node information in the nexus file.

Example of one node: Node information from nexus file: [&CAheight_95%_HPD={0.0,49.72305407126764}, CAheight_mean=40.71613581558492, CAheight_median=44.80661609279434, CAheight_range={0.0,112.78985757784564}, height=44.856154673869845, height_95%_HPD={39.43269073659225,51.151204474747715}, height_median=45.14262819035353, height_range={22.355189445004555,61.710352533394385}, length=1.0307089196384953, length_95%_HPD={0.39507621973169194,1.7725551732569897}, length_median=0.9760938200308402, length_range={0.03298942551236905,6.471945221508747}, posterior=0.9608862197605007, rate=0.005665744739773379, rate_95%_HPD={0.003131605962014538,0.00849058288412562}, rate_median=0.00541913863162671, rate_range={9.78434766709904E-4,0.06024127421570448}]

"Node Ages" node label from FigTree: 45,2401...

How is FigTree calculating the Node Ages? Is this a possible bug? Thanks and cheers! Ales

[aast242]

As far as I can tell, the Node Ages displayed in FigTree are identical to those returned by branching.times() in the R package ape (see documentation here), so I would assume they're calculated the same way.