Boosting Functional Regression Models (FDboost)
Regression models for functional data, i.e. scalar-on-function, function-on-scalar and function-on-function regression models are fitted using a component-wise gradient boosting algorithm.

Read, Write and Edit XLSX Files (openxlsx)
Simplifies the creation of .xlsx files by providing a high level interface to writing, styling and editing worksheets. Through the use of Rcpp, read/write times are comparable to the xlsx and XLConnect packages with the added benefit of removing the dependency on Java.

Web Application Framework for R (shiny)
Makes it incredibly easy to build interactive web applications with R. Automatic ‘reactive’ binding between inputs and outputs and extensive pre-built widgets make it possible to build beautiful, responsive, and powerful applications with minimal effort.