mhealthtools: A Modular R Package for Extracting Features from Mobile and Wearable Sensor Data

mhealthtools is an open-source, modular R package for preprocessing and extracting features from remote sensor data collected using mobile and wearable devices. The package is written in a functional style so that various components of the preprocessing and feature extraction pipeline can be inserted, omitted, moved around, extended, and shared between multiple libraries with minimal overhead. Depending on the data source, the package includes a default set of preprocessing and feature extraction behavior for convenient exploratory analysis.