.generate_hierarchy_tree
                        generate hierarchy tree
.generate_leaf_of_table
                        generate leaf of table
.generate_node_ids      generate node ids in the tree
.generate_nodes_table   generate nodes table tree
.replaceNAFeatures      replace if there are NA's in the hierarchy
[,TreeIndex,ANY,ANY,ANY-method
                        Subset TreeIndex
ClusterHierarchy        Creates a new ClusterHierarchy object.
ClusterHierarchy-class
                        ClusterHierarchy class to manage treeviz
                        cluster data
createFromSCE           Creates a 'TreeViz" object from
                        'SingleCellExperiment'. Generates clusters
                        based on Walktrap algorithm if no default is
                        provided
createFromSeurat        Creates a 'TreeViz' object from 'Seurat'
createTreeViz           Creates 'TreeViz' object from hierarchy and
                        count matrix
EpivizTreeData-class    Data container for MRexperiment objects
set_gene_list           Sets gene list for visualization
show,TreeViz-method     show object
startTreeviz            Start treeviz app and create 'TreeVizApp'
                        object to manage connection.
TreeIndex               create a new TreeIndex object
TreeIndex-class         TreeIndex class to manage and query
                        hierarchical data
TreeViz                 The TreeViz class.
TreeViz-class           TreeViz class wrapper for SummarizedExperiment
                        objects
TreeVizApp-class        Class managing connection to metaviz
                        application.
