COMPUTER CODES RELATED TO Castro M, López-García M, Lythe G, Molina-París C (2018) First passage events in biological systems with non-exponential inter-event times. Scientific Reports. DOI: 10.1038/s41598-018-32961-7 Author: Mario Castro (Grupo Interdisciplinar de Sistemas Complejos (GISC) and DNL, Universidad Pontificia Comillas, Madrid, E-28015, Spain) Date: 24 September 2018 Correspondence for questions: marioc@comillas.edu These computer codes can be used to reproduce the main Figures in "Castro M, López-García M, Lythe G, Molina-París C (2018) First passage events in biological systems with non-exponential inter-event times. Scientific Reports. DOI: 10.1038/s41598-018-32961-7" Programming Language: R R version used: 3.2.2 Operative system: Linux CentOS