Provides tools for modeling time-to-event data with a cure fraction under correlated
    destructive negative binomial cure rate models. The models assume multiple latent competing 
    causes with possible dependence and allow for elimination (inactivation) of some initial causes.
    Estimation is performed via an Expectation-Maximization algorithm, and diagnostic tools based 
    on Cox-Snell residuals are provided.

Wrapper functions to model and extract various quantitative information from absorption spectra of chromophoric dissolved organic matter (CDOM).

Parallel coordinate plotting with resolutions for large data sets
 and missing values.

A wrapper for the 'CDRC' 'API' that returns data frames or 'sf' of 'CDRC' data. The 'API' web reference is:<https://api.cdrc.ac.uk/swagger/index.html>.

In the context of paid research studies and clinical trials, budget considerations and patient sampling from available populations are subject to inherent constraints. We introduce the 'CDsampling' package, which integrates optimal design theories within the framework of constrained sampling. This package offers the possibility to find both D-optimal approximate and exact allocations for samplings with or without constraints. Additionally, it provides functions to find constrained uniform sampling as a robust sampling strategy with limited model information. Our package offers functions for the computation of the Fisher information matrix under generalized linear models (including regular linear regression model) and multinomial logistic models.To demonstrate the applications, we also provide a simulated dataset and a real dataset embedded in the package. Yifei Huang, Liping Tong, and Jie Yang (2025)<doi:10.5705/ss.202022.0414>.

Provides interface to the 'Copernicus Data Space Ecosystem' API 
    <https://dataspace.copernicus.eu/analyse/apis>, mainly for searching the catalog of available
    data from Copernicus Sentinel missions and obtaining the images for just the area of interest 
    based on selected spectral bands. The package uses the 'Sentinel Hub' REST API interface
    <https://dataspace.copernicus.eu/analyse/apis/sentinel-hub> that provides access to various 
    satellite imagery archives. It allows you to access raw satellite data, rendered images, 
    statistical analysis, and other features. 
    This package is in no way officially related to or endorsed by Copernicus.