Tracking accrual in clinical trials is important for trial success. 
    If accrual is too slow, the trial will take too long and be too expensive. If
    accrual is much faster than expected, time sensitive tasks such as the writing 
    of statistical analysis plans might need to be rushed. 'accrualPlot' provides 
    functions to aid the tracking of accrual and predict when a trial will reach 
    it's intended sample size.

Provides tools for designing and analyzing Acceptance Sampling plans.
    Supports both Attributes Sampling (Binomial and Poisson distributions) and 
    Variables Sampling (Normal and Beta distributions), enabling quality control 
    for fractional and compositional data. Uses nonlinear programming for sampling 
    plan optimization, minimizing sample size while controlling producer's and 
    consumer's risks. Operating Characteristic curves are available for plan visualization.

Implementation of sparse linear discriminant analysis, which is a supervised
    classification method for multiple classes. Various novel optimization approaches to
    this problem are implemented including alternating direction method of multipliers ('ADMM'),
    proximal gradient (PG) and accelerated proximal gradient ('APG') (See Atkins 'et al'. <arXiv:1705.07194>).
    Functions for performing cross validation are also supplied along with basic prediction
    and plotting functions.
    Sparse zero variance discriminant analysis ('SZVD') is also included in the package
    (See Ames and Hong, <arXiv:1401.5492>). See the 'github' wiki for a more extended description.

An isotope natural abundance correction algorithm that
  is needed especially for high resolution mass spectrometers. Supports
  correction for 13C, 2H and 15N. Su X, Lu W and Rabinowitz J (2017)
  <doi:10.1021/acs.analchem.7b00396>.

Estimate group aggregates, where one can set user-defined conditions
   that each group of records must satisfy to be suitable for aggregation. If
   a group of records is not suitable, it is expanded using a collapsing scheme
   defined by the user. A paper on this package was published in the Journal
   of Statistical Software <doi:10.18637/jss.v112.i04>.