Developing Tactile Graphic Output Functions Necessitated in the Performance of Research Using Statistical Methods by Blind Persons

It is difficult for blind persons to conduct research using statistical methods in an effective and independent manner. Jonathan Godfrey emphasized the usability of R for blind persons. His BrailleR package can be said to use is the “method of transcribing values represented in graphics into characters.” The author has shown that the advantages of the “method of converting graphics into a tactile graphic.” This research realized access by blind persons to graphics output by R using that method with no human intervention. The software developed through this research was employed the approach of interpreting SVG output produced by RSVGTipsDevice. It was configured that dot size and inter-dot pitch could be defined. An experiment showed that the question of which method is more effectively applied differed according to the experiment participant.