CodeinLogMetabolitesUrine
                        Codeine metabolite concentrations in urine.
LipidsPsychiatricPat    Chromatography mass spectrometry of lipid
                        mediators measured in blood samples.
PainThresholds          Psychophysical data from an investigation of
                        pain thresholds.
QSTpainEJPtransf        Psychophysical data from a clinical
                        quantitative sensory testing study.
compare_imputation_methods
                        Compare Imputation Methods for Missing Value
                        Analysis
create_diagnostic_missings
                        Create Diagnostic Missing Values in Data
impute_missings         Impute Missing Values Using Specified Method
