3 papers
stat.ME2018
A residual for outlier identification in zero adjusted regression models
Gustavo H. A. Pereira, Juliana S. Rodrigues, Manoel Santos Neto +2
Zero adjusted regression models are used to fit variables that are discrete at zero and continuous at some interval of the positive real numbers. Diagnostic analysis in these model…
stat.AP2008
Heteroscedastic controlled calibration model applied to analytical chemistry
Betsabé G. Blas Achic, Mônica C. Sandoval
In chemical analysis made by laboratories one has the problem of determining the concentration of a chemical element in a sample. In order to tackle this problem the guide EURACHEM…
stat.AP2008
Homoscedastic controlled calibration model
Betsabé G. Blas Achic, Mônica C. Sandoval, Olga Satomi Yoshida
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, co…