Homoscedastic controlled calibration model

Details Homoscedastic controlled calibration model Homoscedastic controlled calibration model

2008-02-05

arxiv.org/abs/0802.0691v1

Journal of Chemometrics, v. 21, p. 145-155, 2007

Statistics

Applications

LaTex, 21 pages. Includes 13 tables. Version published in Journal of Chemometrics, v. 21, p. 145-155, 2007

Scientific paper

In the context of the usual calibration model, we consider the case in which the independent variable is unobservable, but a pre-fixed value on its surrogate is available. Thus, considering controlled variables and assuming that the measurement errors have equal variances we propose a new calibration model. Likelihood based methodology is used to estimate the model parameters and the Fisher information matrix is used to construct a confidence interval for the unknown value of the regressor variable. A simulation study is carried out to asses the effect of the measurement error on the estimation of the parameter of interest. This new approach is illustrated with an example.

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