MaryAnn H. Hill is a retired American

statistical software Statistical software are specialized computer programs for analysis in statistics and econometrics. Open-source * ADaMSoft – a generalized statistical software with data mining algorithms and methods for data management * ADMB – a software ...

developer who contributed to statistics packages including

BMDP BMDP was a statistical package developed in 1965 by Wilfrid Dixon at the University of California, Los Angeles. The acronym stands for Bio-Medical Data Package, the word package was added by Dixon as the software consisted of a series of programs ...

, SYSTAT, and

SPSS SPSS Statistics is a statistical software suite developed by IBM for data management, advanced analytics, multivariate analysis, business intelligence, and criminal investigation. Long produced by SPSS Inc., it was acquired by IBM in 2009. C ...

. She also published fundamental research on

robust statistics Robust statistics are statistics with good performance for data drawn from a wide range of probability distributions, especially for distributions that are not normal. Robust statistical methods have been developed for many common problems, suc ...

, as well as contributing statistical analyses to several medical research publications.

Career

In the 1970s, Hill worked for the

University of California, Los Angeles The University of California, Los Angeles (UCLA) is a public land-grant research university in Los Angeles, California. UCLA's academic roots were established in 1881 as a teachers college then known as the southern branch of the California St ...

(UCLA) as a developer of the

(Biomedical Data Processing) package, including developing

robust regression In robust statistics, robust regression seeks to overcome some limitations of traditional regression analysis. A regression analysis models the relationship between one or more independent variables and a dependent variable. Standard types of reg ...

and

ridge regression Ridge regression is a method of estimating the coefficients of multiple-regression models in scenarios where the independent variables are highly correlated. It has been used in many fields including econometrics, chemistry, and engineering. Also ...

methods for BMDP. She was later also credited with writing most of the documentation of the BMDP system. In the 1980s, she was listed as a senior statistician in the UCLA biomathematics program, also affiliated with the VA Medical Center in Los Angeles, and later in the UCLA Department of Psychiatry and as an employee of BMDP Statistical Software, Inc. By the early 1990s, she was working in the department of statistics at the

University of Michigan , mottoeng = "Arts, Knowledge, Truth" , former_names = Catholepistemiad, or University of Michigania (1817–1821) , budget = $10.3 billion (2021) , endowment = $17 billion (2021)As o ...

and at Systat Software Inc., working on the SYSTAT statistics package. SYSTAT was sold in 1995 to

, and in 1997 she authored a manual on missing data for SPSS, Inc. She was also listed as a senior statistician at

NORC at the University of Chicago NORC at the University of Chicago is one of the largest independent social research organizations in the United States. Established in 1941 as the National Opinion Research Center, its corporate headquarters is located in downtown Chicago, with o ...

in 1997.

Recognition

Hill was named as a

Fellow of the American Statistical Association Like many other academic professional societies, the American Statistical Association (ASA) uses the title of Fellow of the American Statistical Association as its highest honorary grade of membership. The number of new fellows per year is limited ...

in 1995.

Personal life

Hill is the mother of biology professor Karlyn Mueller-Hill, who writes in her 1999 doctoral thesis that Hill's "idea of child day care was to bring arlynto her graduate classes in statistics".

References

{{DEFAULTSORT:Hill, Maryann Year of birth missing (living people) Living people American statisticians American women statisticians American computer scientists American women computer scientists Fellows of the American Statistical Association