A collection of functions which (i) assess the quality of variable subsets as surrogates for a full data set, in either an exploratory data analysis or in the context of a multivariate linear model, and (ii) search for subsets which are optimal under various criteria. Theoretical support for the heuristic search methods and exploratory data analysis criteria is in Cadima, Cerdeira, Minhoto (2003, <doi:10.1016/j.csda.2003.11.001>). Theoretical support for the leap and bounds algorithm and the criteria for the general multivariate linear model is in Duarte Silva (2001, <doi:10.1006/jmva.2000.1920>). There is a package vignette "subselect", which includes additional references.

The Subsemble algorithm is a general subset ensemble prediction method, which can be used for small, moderate, or large datasets. Subsemble partitions the full dataset into subsets of observations, fits a specified underlying algorithm on each subset, and uses a unique form of k-fold cross-validation to output a prediction function that combines the subset-specific fits. An oracle result provides a theoretical performance guarantee for Subsemble. The paper, "Subsemble: An ensemble method for combining subset-specific algorithm fits" is authored by Stephanie Sapp, Mark J. van der Laan & John Canny (2014) <doi:10.1080/02664763.2013.864263>.

An interface to access data from Substack publications via API. 
    Users can fetch the latest, top, search for specific posts, or retrieve a single post by its slug. 
    This functionality is useful for developers and researchers looking to analyze Substack content or 
    integrate it into their applications. For more information, visit the API documentation at <https://substackapi.dev/introduction>.

Tools for generating timed subtitle files and rendering them
    into video with the 'FFmpeg' command-line interface
    (<https://ffmpeg.org/>). Converts structured transcription output (such
    as that produced by 'Whisper' speech-to-text models) into SubRip ('SRT')
    and Advanced SubStation Alpha ('ASS') subtitle files, with word-level
    caption timing, styling presets, and line-break control, and burns
    subtitles into video files using the 'FFmpeg' subtitles filter.