
Create a new phylogenetic flow collection object (pfc)
      pfc.RdCreate a new phylogenetic flow collection object (pfc)
Arguments
- pfn
- A character vector of names for each phylogenetic flow 
- pfpp
- A vector of phylogenetic flow paths of class - pfp
- pfl
- A list of phylogenetic flow feature. Should be numeric. 
- is_tip
- A logical vector specifying whether the phylogenetic flow reaches the phylogeny's tips 
- edge_names
- A character vector of names for the phylogeny's edges 
- internal
- A logical vector specifying whether each edge is internal (not leading to a tip) 
- node_ord
- An optional integer vector specifying an order for the nodes. Usually used to store ordering information from another tree format such as - phyloso it is easier to match data up later.
- edge_ord
- An optional integer vector specifying an order for the edges. Usually used to store ordering information from another tree format such as - phyloso it is easier to match data up later.
- sparse_mat
- A sparse matrix representation of the phylogenetic flow collection. Can be left - NULL, in which case it is constructed from the other arguments.
- x
- An object to be tested