### Definition of Estimator

1. Noun. An expert at calculation (or at operating calculating machines).

Exact synonyms: Calculator, Computer, Figurer, Reckoner
Generic synonyms: Expert
Specialized synonyms: Adder, Number Cruncher, Actuary, Statistician, Subtracter
Derivative terms: Calculate, Compute, Computerise, Estimate, Figure, Reckon

### Definition of Estimator

1. n. One who estimates or values; a valuer.

### Definition of Estimator

1. Noun. A person who estimates, especially one who estimates costs ¹

2. Noun. (mathematics) A function of a random sample of a population used to estimate some parameter of the whole population ¹

¹ Source: wiktionary.com

1. [n -S]

### Medical Definition of Estimator

1. A prescription for obtaining an estimate from a random sample of data. An estimator is a procedure, not a result, and therefore is a random variable and has a variance. For instance an estimator of the mean weight in adult men may consist of the prescription "Add up the weights of 100 men and divide by 100." The actual outcome (the estimate) will vary from sample to sample, but one answer will not be a random variable. Least squares estimator, the prescription "Assign to the unknown parameter the value that minimises the mean of the squares of the residual errors". Maximum likelihood estimator, the prescription "Assign to the unknown parameter that value that maximises the likelihood for the sample". For many problems this procedure is an optimal one. (05 Mar 2000)

### Lexicographical Neighbors of Estimator

 estimableestimablenessestimablenessesestimablyestimandestimandsestimateestimatedestimated taxestimated tax return estimatesestimatingestimationestimationsestimativeestimator (current term)estimatorsestivalestivateestivated estivatesestivatingestivationestivationsestivatorestivatorsestivoautumnalestocestocsestoile

### Literary usage of Estimator

Below you will find example usage of this term as found in modern and/or classical literature:

1. Analytic Statistical Models by Ib M. Skovgaard (1990)
"3 Asymptotic normality of the local maximum likelihood estimator For sequences of ... By 'local' we mean the maximum likelihood estimator for the model ..."

2. Selected Proceedings of the Symposium on Estimating Functions by Ishwar V. Basawa, Robert Lee Taylor, V. P. Godambe (1997)
"So the ML estimator will be most informative if the true model is known. But it is often not consistent if a model is wrongly chosen. ..."

3. Crossing Boundaries: Statistical Essays in Honor of Jack Hall by William Jackson Hall, John Edward Kolassa, David Oakes (2003)
"In this paper, in analogy to the binomial estimation, we give a class of parameter functions for which no unbiased estimator exists. ..."

4. Review of Recreational Fisheries Survey Methods by National Research Council (U.S.), Division on Earth and Life Studies (2006)
"Such an estimator fits a global regression model to all of the survey data ... On the other hand, a model-assisted survey regression estimator predicts all ..."

5. Catalogue of the Books Relating to Architecture, Construction and Decoration by Boston Public Library, Mary Harris Rollins, Frank Augustus Bourne (1914)
"The new building estimator. New York. 1909. Plates. Plan. ... Pocket technical guide, measurer, & estimator for builders and surveyors. 6th edition. London. ..."

6. Analysis of Longitudinal and Cluster-Correlated Data by Nan M. Laird (2004)
"Notice that this formulation includes, but is not restricted to, estimators that use as weight Wi an estimator Ej of Ej . This particular application is ..."

7. Access to Credit and Its Impact on Welfare in Malawi by Aliou Diagne, Manfred Zeller (2001)
"Maximizing the bog likelihood without the constraint yields the Manski-McFadden estimator, which is much simpler to compute because it does not require ..."