It provides a function "wearingMarking" for classification of monitor
    wear and nonwear time intervals in accelerometer data collected to assess
    physical activity. The package also contains functions for making plot for 
    accelerometer data and obtaining the summary of various information including 
    daily monitor wear time and the mean monitor wear time during valid days.      
    "deliveryPred" and "markDelivery" can classify days for ActiGraph delivery by mail;
    "deliveryPreprocess" can process accelerometry data for analysis by zeropadding incomplete 
    days and removing low activity days; "markPAI" can categorize physical activity
    intensity level based on user-defined cut-points of accelerometer counts. It also
    supports importing ActiGraph AGD files with "readActigraph" and "queryActigraph" functions.

A variety of formulae are provided for estimation
    of physiologic characteristics of infants, children, and adults.
    Calculations include: body surface area, ideal weight, airway
    dead-space, the alveolar gas equation, and GFR.  Each formula is
    referenced to the original publication. Future functions will cover
    more material with a focus on anaesthesia, critical care and
    peri-operative medicine.

Screens and sorts phylogenetic trees in both traditional and
    extended Newick format. Allows for the fast and flexible screening (within
    a tree) of Exclusive clades that comprise only the target taxa and/or Non-
    Exclusive clades that includes a defined portion of non-target taxa.

Determine the chlorophyll a (Chl a) biomass of different 
    phytoplankton groups based on their pigment biomarkers. The method uses
    non-negative matrix factorisation and simulated annealing to minimise error
    between the observed and estimated values of pigment concentrations
    (Hayward et al. (2023) <doi:10.1002/lom3.10541>).
    The approach is similar to the widely used 'CHEMTAX' program
    (Mackey et al. 1996) <doi:10.3354/meps144265>, but is more straightforward,
    accurate, and not reliant on initial guesses for the pigment to Chl a
    ratios for each phytoplankton group.