This 'Rcpp'-based package implements highly efficient functions for the calculation of the Jonckheere-Terpstra statistic. It can be used for a variety of applications, including feature selection in machine learning problems, or to conduct genome-wide association studies (GWAS) with multiple quantitative phenotypes. The code leverages 'OpenMP' directives for multi-core computing to reduce overall processing time.

A computationally efficient and statistically rigorous fast 
    Kernel Machine method for multi-kernel analysis. The approach is based on 
    a low-rank approximation to the nuisance effect kernel matrices. The 
    algorithm is applicable to continuous, binary, and survival traits and 
    is implemented using the existing single-kernel analysis software 'SKAT' 
    and 'coxKM'. 'coxKM' can be obtained from 
    <https://github.com/lin-lab/coxKM>.

R wrappers of C++ implementation of Faster K-Medoids clustering algorithms (FastPAM, FastCLARA and FastCLARANS) proposed in Erich Schubert, Peter J. Rousseeuw 2019 <doi:10.1007/978-3-030-32047-8_16>.

Compute labels for a test set according to the k-Nearest Neighbors classification. This is a fast way to do k-Nearest Neighbors classification because the distance matrix -between the features of the observations- is an input to the function rather than being calculated in the function itself every time.

Fitting a fast Laplace approximation for Spatial Generalized Linear Mixed Model as
  described in Park and Lee (2021) <https://github.com/sangwan93/fastLaplace/blob/main/FastLaplaceMain.pdf>.

Implements a Fellegi-Sunter probabilistic record linkage model that allows for missing data
    and the inclusion of auxiliary information. This includes functionalities to conduct a merge of two 
    datasets under the Fellegi-Sunter model using the Expectation-Maximization algorithm. In addition, 
    tools for preparing, adjusting, and summarizing data merges are included. The package implements methods 
    described in Enamorado, Fifield, and Imai (2019) ''Using a Probabilistic Model to Assist Merging of 
    Large-scale Administrative Records'' <doi:10.1017/S0003055418000783> and is available 
    at <https://imai.fas.harvard.edu/research/linkage.html>.