| accessionToTaxa | Convert accessions to taxa | 
| condenseTaxa | Condense multiple taxonomic assignments to their most recent common branch | 
| getAccession2taxid | Download accession2taxid files from NCBI | 
| getAccessions | Find all accessions for a taxa | 
| getCommon | Find common names for a given taxa | 
| getDescendants | Get descendant ranks for a taxa | 
| getId | Find a given taxa by name | 
| getId2 | Find a given taxa by name | 
| getNamesAndNodes | Download names and nodes files from NCBI | 
| getRawTaxonomy | Get all taxonomy for a taxa | 
| getTaxonomy | Get taxonomic ranks for a taxa | 
| getTaxonomy2 | Get taxonomic ranks for a taxa | 
| lastNotNa | Return last not NA value | 
| makeNewick | Create a Newick tree from taxonomy | 
| normalizeTaxa | Bring multiple raw taxonomies into alignment | 
| prepareDatabase | Download data from NCBI and set up SQLite database | 
| read.accession2taxid | Read NCBI accession2taxid files | 
| read.names | Read NCBI names file | 
| read.names.sql | Read NCBI names file | 
| read.nodes | Read NCBI nodes file | 
| read.nodes.sql | Read NCBI nodes file | 
| resumableDownload | Download file using curl allowing resumption of interrupted files | 
| streamingRead | Process a large file piecewise | 
| taxonomizrSwitch | Switch from data.table to SQLite | 
| topoSort | Combine multiple sorted vectors into a single sorted vector | 
| trimTaxa | Trim columns from taxa file |