as.numeric_ifnumeric    Convert to Numeric if Possible
data_restoretype        Restore the type of columns according to a
                        reference data.frame
estimate_contrasts      Estimate contrasts between factor levels
estimate_contrasts.lm   Estimate contrasts
estimate_contrasts.stanreg
                        Estimate contrasts
estimate_means          Estimate average value of response variable at
                        each factor levels
estimate_relation       Generates predictions from models
estimate_slopes         Estimate the slopes of a numeric predictor
                        (over different factor levels)
estimate_slopes.lm      Estimate the slopes of a numeric predictor
                        (over different factor levels)
estimate_slopes.stanreg
                        Estimate the slopes of a numeric predictor
                        (over different factor levels)
estimate_smooth         Describe the smooth term (for GAMs) or
                        non-linear predictors
find_inversions         Find points of inversion
smoothing               Smoothing a vector or a time series
visualisation_matrix    Create a reference grid
zero_crossings          Find zero crossings of a vector
