Dendrogram bug with <6 nodes

[whelena]

Dendrogram mode has an unexpected interaction with the calculate.angles.fixed function resulting in the plot below. the condition for running calculate.angles.radial vs calculate.angles.fixed id determined by the following logic.

is.null(fixed.angle) && nrow(v) > 6) || any(table(v$parent) > 2)

Potential solution

• consolidate the two calculate.angles functions (based on comments in code this seems to be the plan)
• add condition to ensure dnedrogram mode is always run with calculate.angles.radial
  • I tried this, but got an error. I assume this means there are other places where the plotting pipeline is arbitrarily split into 2 categories