oops

src/operators.jl

@@ -118,7 +118,7 @@ end
 #@doc "filter g to include only the vertices present in iter which should not have duplicates
 #returns the subgraph of g induced by set(iter) along with the mapping from the old vertex names to the new vertex names" ->
 function induced_subgraph{T<:AbstractGraph}(g::T, iter)
- if length(unique(iter)) == length(iter)
+ if length(unique(iter)) != length(iter)
  error("Vertices in subgraph list must be unique")
  elseif length(iter) == nv(g)
  return copy(g) # if iter is not a proper subgraph