geom_range for a subset of nodes

[Tiago Gräf]

Hello, 

I'm trying to plot the geom_range for a single node or a subset of nodes with this code:

t = t + geom_range(aes(subset=(node == c(123))), "height_0.95_HPD", color='gray', size=2, alpha=.5)

However I'm getting the following error:

Error in x[1] : object of type 'symbol' is not subsettable

Doing like this I get a tree with all height 95% HPD, but I would like to plot this parameter only for a selection of nodes. 

t = t + geom_range("height_0.95_HPD", color='gray', size=2, alpha=.5)

Does anyone could help me?

Thanks