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**Brian David Ripley** FRSE (born 29 April 1952) is a British statistician. From 1990, he was professor of applied statistics at the University of Oxford and also a professorial fellow at St Peter's College. He retired August 2014 due to ill health.^{[1]}

Brian David Ripley | |
---|---|

Born | 29 April 1952 |

Citizenship | British |

Alma mater | University of Cambridge (BA, MA, PhD) |

Awards | Smith's Prize (1975) Davidson Prize (1976) Adams Prize (1987) Guy Medal (Silver, 2013) |

Scientific career | |

Institutions | Imperial College (1976–83) University of Strathclyde (1983–90) St Peter's College, Oxford (1990–2014) |

Thesis | Stochastic Geometry and the Analysis of Spatial Patterns (1976) |

Doctoral advisor | David George Kendall |

Doctoral students | Matthew Stephens Jonathan Marchini |

Ripley has made contributions to the fields of spatial statistics and pattern recognition. His work on artificial neural networks in the 1990s helped to bring aspects of machine learning and data mining to the attention of statistical audiences.^{[2]} He emphasised the value of robust statistics in his books *Pattern Recognition and Neural Networks* and *Modern Applied Statistics with S*.

Ripley helped develop the S-PLUS programming language^{[3]}^{[4]} and its open source derivative R.^{[5]} He co-authored two books based on S, *S Programming* and *Modern Applied Statistics with S*.^{[3]}^{[4]} Since mid-1997 he is a member of the "R Core Team"^{[6]} and from 2000 to 2021 he was one of the most active committers to the R core.^{[7]} The package MASS^{[8]} is one of only fifteen "recommended packages"^{[9]} for R (with June 2024 more than 20,900^{[10]}).

He was educated at the University of Cambridge, where he was awarded both the Smith's Prize (at the time awarded to the best graduate essay writer who had been undergraduate at Cambridge in that cohort) and the Rollo Davidson Prize. The university also awarded him the Adams Prize in 1987 for an essay entitled *Statistical Inference for Spatial Processes*, later published as a book.^{[11]} He served on the faculty of Imperial College, London from 1976 until 1983, at which point he moved to the University of Strathclyde.^{[12]}

- Ripley, B. D. (1981)
*Spatial Statistics*. Wiley, 252pp. ISBN 0-471-08367-4. - Ripley, B. D. (1983)
*Stochastic Simulation*. Wiley, ISBN 0-471-81884-4. - Ripley, B. D. (1988).
*Statistical Inference for Spatial Processes*. Cambridge University Press. ISBN 0-521-35234-7. - Ripley, B. D. (1996)
*Pattern Recognition and Neural Networks*. Cambridge University Press. 403 pages. ISBN 0-521-46086-7. - Venables, W. N. and Ripley, B. D. (2000)
*S Programming*. Springer, 264pp. ISBN 978-0-387-98966-2. - Venables, W. N. and Ripley, B. D. (2002)
*Modern Applied Statistics with S*(Fourth Edition; previous editions published as*Modern Applied Statistics with S-PLUS*in 1994, 1997 & 1999). Springer, 462pp. ISBN 978-0-387-95457-8.

**^**Professor Ripley's Homepage at Oxford University. Accessed 8 June 2024.**^**For instance, his book*Pattern Recognition and Neural Networks*was reviewed in the Journal of the American Statistical Association: Lange, Nicholas (December 1997), "Reviewed Works:*Neural Networks for Pattern Recognition*by C. M. Bishop;*Pattern Recognition and Neural Networks*by B. D. Ripley",*Journal of the American Statistical Association*,**92**(440): 1642–1645, doi:10.2307/2965437, JSTOR 2965437.- ^
^{a}^{b}Venables, W.N.; Ripley, B.D. (2000).*S programming*. Springer. ISBN 0-387-98966-8. Retrieved 8 June 2024. - ^
^{a}^{b}Venables, W.N.; Ripley, B.D. (2002).*Modern applied statistics with S*(4th ed.). Springer. ISBN 0-387-95457-0. Retrieved 8 June 2024. **^**"Contributors". The R Foundation. April 2024. Retrieved 9 June 2024.**^**Kurt Hornik and the R Core Team (2023). "R FAQ: What is R?". CRAN. Retrieved 9 June 2024.**^**Eddelbuettel, Dirk (20 March 2021). "An Ode to Stable Interfaces: R and R Core Deserve So Much Praise".*Thinking Inside the Box*. Archived from the original on 21 March 2021. Retrieved 8 June 2024.**^**Ripley, Brian; Venables, Bill; Bates, Douglas M.; Hornik, Kurt; Gebhardt, Albrecht; Firth, David (26 April 2024). "MASS: Support Functions and Datasets for Venables and Ripley's MASS". CRAN. Retrieved 8 June 2024.**^**Kurt Hornik and the R Core Team (2023). "R FAQ: Add-on packages from CRAN". CRAN. Retrieved 8 June 2024.**^**"CRAN: Contributed Packages". Retrieved 9 June 2024.**^**Ripley, B. D. (1988).*Statistical Inference for Spatial Processes*. Cambridge University Press. pp. iv, vii. ISBN 0-521-35234-7.**^**Profile of Professor Brian D Ripley (Last edited 1 October 1999 by Brian Ripley). Accessed 8 June 2024.

- Brian Ripley's home page at the University of Oxford