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Changelog

Source: NEWS.md

surreal 0.0.2

CRAN release: 2026-01-11

New Features

  • surreal_image(): Create surreal datasets directly from image files or URLs. Supports PNG, JPEG, BMP, TIFF, and SVG formats with automatic mode detection and threshold calculation.

  • surreal_app(): Launch an interactive Shiny application for exploring the surreal algorithm. Includes demo datasets, custom text input, image uploads, and real-time parameter controls. Export results to CSV or download plots.

surreal 0.0.1

CRAN release: 2024-09-12

Features

  • surreal(): embeds a hidden image supplied by (x, y) coordinates into a data set that seemingly has no pattern until the residuals are plotted.
  • surreal_text(): embeds a hidden text pattern into a data set that seemingly has no pattern until the residuals are plotted.
  • Included data:
    • r_logo_image_data: a data set containing the R logo image that can be hidden using the surreal() function.
    • jack_o_lantern_image_data: a data set containing a hidden jack-o-lantern image.