```
data(bird.families)
is.binary(bird.families)
is.binary(multi2di(bird.families))
all.equal(di2multi(multi2di(bird.families)), bird.families)
### To see the results of randomly resolving a trichotomy:
tr <- read.tree(text = "(a:1,b:1,c:1);")
layout(matrix(1:4, 2, 2))
for (i in 1:4)
plot(multi2di(tr), use.edge.length = FALSE, cex = 1.5)
layout(1)
```

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