Given a binary vector, build a perturbation object

True.values are counted as perturbed time points, false.values as non-perturbed ones.

binaryToPerturb(bin.metadata.item, false.value = "no",
  true.value = "yes")

Arguments

bin.metadata.item	a binary metadata item with false and true values
false.value	the string/number used to encode false values
true.value	the string/number used to encode true values