Provides tools to derive species-level phylogenies from large
    synthesis mega-trees for a wide range of taxonomic groups, including
    plants, birds, mammals, amphibians, reptiles, fish, bees, butterflies,
    and sharks. When a queried species is absent from the mega-tree, it is
    grafted onto the tree using one of two placement strategies: attachment
    at the basal node of the most closely related genus or family
    ('at_basal_node'), or random attachment below that basal node with
    probability proportional to branch length ('random_below_basal'). 
    See Li (2023) <doi:10.1111/ecog.06643> for details. Multiple species from a 
    genus not represented in the mega-tree are placed as a polytomy to preserve 
    clade coherence. The package interfaces with the 'megatrees' data package,
    which bundles or downloads on demand curated mega-trees. 
    Users can also provide their own mega-trees.

Provides datasets related to the Star Trek fictional universe and functions for working with the data.
    The package also provides access to real world datasets based on the televised series and other related licensed media productions.
    It interfaces with the Star Trek API (STAPI) (<http://stapi.co/>), 
    Memory Alpha (<https://memory-alpha.fandom.com/wiki/Portal:Main>), and Memory Beta (<https://memory-beta.fandom.com/wiki/Main_Page>) 
    to retrieve data, metadata and other information relating to Star Trek.
    It also contains several local datasets covering a variety of topics. 
    The package also provides functions for working with data from other Star Trek-related 
    R data packages containing larger datasets not stored in 'rtrek'.

The traditional linear regression trend, Modified Mann-Kendall (MK)
    non-parameter trend and bootstrap trend are included in this package. Linear 
    regression trend is rewritten by '.lm.fit'. MK trend is rewritten by 'Rcpp'.
    Finally, those functions are about 10 times faster than previous version 
    in R.
    Reference:
    Hamed, K. H., & Rao, A. R. (1998). A modified Mann-Kendall trend test for 
    autocorrelated data. Journal of hydrology, 204(1-4), 182-196. 
    <doi:10.1016/S0022-1694(97)00125-X>.