The GiViTI Calibration Test and Belt
Calibration Belt Significant Deviations
Calibration Belt Confidence Region
Calibration Belt
Table of the Calibration Belt Significant Deviations
Calibration Test
Computation of the Calibration Test
Check of the argument's values
Check of data
givitiR: assessing the calibration of binary outcome models with the G...
CDF of the Calibration Statistic Under the Null Hypothesis
Logit and logistic functions
Calibration Belt Plot
Forward Selection in Polynomial Logistic Regression
Functions to assess the calibration of logistic regression models with the GiViTI (Gruppo Italiano per la Valutazione degli interventi in Terapia Intensiva, Italian Group for the Evaluation of the Interventions in Intensive Care Units - see <http://www.giviti.marionegri.it/>) approach. The approach consists in a graphical tool, namely the GiViTI calibration belt, and in the associated statistical test. These tools can be used both to evaluate the internal calibration (i.e. the goodness of fit) and to assess the validity of an externally developed model.