surreal 0.0.1

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.
  • This function works only on Unix-like systems due to the ppm file type not being supported by the version of GhostScript included with R on Windows.
• 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.