adjust_ages             Adjusts data to account for plus group or
                        minimum age
ages_as_ordered         Convert ages from/to ordered factor
assign_ages             Assign ages to non-aged data based on a fitted
                        age model
assign_alk_attributes   Assign associated age-length key attributes to
                        a data.frame
assign_na_age           Simple function that returns NA values
bin_lengths             Convert a vector of lengths into binned values
calc_mse                Calculate mean-squared-error (MSE) and root
                        mean-squared-error (RMSE) of estimated ages
calc_mse_               Backend helper function to compute MSE or RMSE
calc_stat_scores        Compute test statistics for comparing actual
                        and estimated ages
check_agelen_data       Check for age/length data in the data being
                        estimated or predicted
check_model_type        Check the model type and return standardized
                        version
integral_quotient       Compute the quotient of integrals as a measure
                        of percent error between two curves
laa_data                Example length-at-age data
length_data             Example length data
make_alk                Make an age-length key out of length-at-age
                        data
make_halk               Create a hierarchical age-length key (HALK)
min_samples             Count number of length-at-age samples or age
                        groups at each level and return those with
                        greater than equal to the minimum desired
                        number
rename_laa_cols         Simple helper function to rename size and age
                        column names to age and length
spp_levels              Check for species in columns and/or levels and
                        add to levels if present
wb_spp_data             Separate species, county, waterbody example
                        length-at-age and length data
