| adjust_digits | Plausible Rounding | 
| bowley | Bowley skewness | 
| conf_int95 | Confidence intervals of estimated reference limits | 
| iboxplot | Removal of pathological values | 
| interpretation | Colors and text modules to interprete deviations from given target values | 
| livertests | Dataset: livertests | 
| lognorm | Lognormal distribution model | 
| permissible_uncertainty | Tolerance intervals of estimated and target limits | 
| reflim | Reference limits (main function) | 
| ri_hist | Histogram with density plots and reference limits | 
| targetvalues | Dataset: target values | 
| truncated_qqplot | Quantile-Quantile plot of truncated laboratory results |