Obach2008               Published Pharmacokinetic Parameters from Obach
                        et al. 2008
Wetmore.data            Published toxicokinetic predictions based on in
                        vitro data
Wetmore2012             Published toxicokinetic predictions based on in
                        vitro data from Wetmore et al. 2012.
add_chemtable           Add a table of chemical information for use in
                        making httk predictions.
age_dist_smooth         Smoothed age distributions by race and gender.
age_draw_smooth         Draws ages from a smoothed distribution for a
                        given gender/race combination
blood_mass_correct      Find average blood masses by age.
blood_weight            Predict blood mass.
bmiage                  CDC BMI-for-age charts
body_surface_area       Predict body surface area.
bone_mass_age           Predict bone mass.
brain_mass              Predict brain mass.
calc_analytic_css       Calculate the analytic steady state
                        concentration.
calc_css                Find the steady state concentration and the day
                        it is reached.
calc_elimination_rate   Calculate the elimination rate for a one
                        compartment model.
calc_hepatic_clearance
                        Calculate the hepatic clearance.
calc_ionization         Calculate the ionization.
calc_mc_css             Find the monte carlo steady state
                        concentration.
calc_mc_oral_equiv      Calculate Monte Carlo Oral Equivalent Dose
calc_rblood2plasma      Calculate the constant ratio of the blood
                        concentration to the plasma concentration.
calc_stats              Calculate the statistics.
calc_total_clearance    Calculate the total clearance.
calc_vdist              Calculate the volume of distribution for a one
                        compartment model.
chem.invivo.PK.data     Published toxicokinetic time course
                        measurements
chem.invivo.PK.summary.data
                        Summary of published toxicokinetic time course
                        experiments
chem.lists              Chemical membership in different research
                        projects
chem.physical_and_invitro.data
                        Physico-chemical properties and in vitro
                        measurements for toxicokinetics
ckd_epi_eq              CKD-EPI equation for GFR.
convert_httk            Converts HTTK-Pop virtual population into
                        parameters relevant to an HTTK model.
draw_fup_clint          Draw Funbound.plasma and Clint from censored or
                        non-censored distributions.
estimate_gfr            Predict GFR.
estimate_gfr_ped        Predict GFR in children.
estimate_hematocrit     Predict hematocrit using smoothing spline.
export_pbtk_jarnac      Export model to jarnac.
export_pbtk_sbml        Export model to sbml.
gen_age_height_weight   Generate ages, heights, and weights for a
                        virtual population using the
                        virtual-individuals method.
gen_height_weight       Generate heights and weights for a virtual
                        population.
get_cheminfo            Retrieve chemical information from HTTK package
get_gfr_category        Categorize kidney function by GFR.
get_httk_params         Converts the HTTK-Pop population data table to
                        a table of the parameters needed by HTTK, for a
                        specific chemical.
get_rblood2plasma       Get ratio of the blood concentration to the
                        plasma concentration.
get_weight_class        Given vectors of age, BMI, recumbent length,
                        weight, and gender, categorizes weight classes
                        using CDC and WHO categories.
get_wetmore_cheminfo    Get Wetmore Chemical Information.
get_wetmore_css         Get Wetmore Css
get_wetmore_oral_equiv
                        Get Wetmore Oral Equivalent Dose
hematocrit_infants      Predict hematocrit in infants under 1 year old.
howgate                 Howgate 2006
httkpop                 httkpop: Virtual population generator for HTTK.
httkpop_bio             Convert HTTK-Pop-generated parameters to HTTK
                        physiological parameters
httkpop_direct_resample
                        Generate a virtual population by directly
                        resampling the NHANES data.
httkpop_direct_resample_inner
                        Inner loop function called by
                        'httkpop_direct_resample'.
httkpop_generate        Generate a virtual population
httkpop_virtual_indiv   Generate a virtual population by the virtual
                        individuals method.
in.list                 Convenience Boolean (yes/no) functions to
                        idnetify chemical membership in several key
                        lists.
is_in_inclusive         Checks whether a value, or all values in a
                        vector, is within inclusive limits
johnson                 Johnson 2006
kidney_mass_children    Predict kidney mass for children.
liver_mass_children     Predict liver mass for children.
lump_tissues            Lump tissue parameters
lung_mass_children      Predict lung mass for children.
mcnally_dt              Reference tissue masses and flows from tables
                        in McNally et al. 2014.
monte_carlo             Monte Carlo for pharmacokinetic models
nhanes_mec_svy          Pre-processed NHANES data.
onlyp                   NHANES Exposure Data
pancreas_mass_children
                        Predict pancreas mass for children.
parameterize_1comp      Parameterize_1comp
parameterize_3comp      Parameterize_3comp
parameterize_pbtk       Parameterize_PBTK
parameterize_schmitt    Parameterize Schmitt's method.
parameterize_steadystate
                        Parameterize_SteadyState
physiology.data         Species-specific physiology parameters
predict_partitioning_schmitt
                        Predict partition coefficients using the method
                        from Schmitt (2008).
r_left_censored_norm    Returns draws from a normal distribution with a
                        lower censoring limit of lod (limit of
                        detection)
rfun                    Randomly draws from a one-dimensional KDE
skeletal_muscle_mass    Predict skeletal muscle mass.
skeletal_muscle_mass_children
                        Predict skeletal muscle mass for children.
skin_mass_bosgra        Predict skin mass.
solve_1comp             Solve one compartment TK model
solve_3comp             Solve_3comp
solve_pbtk              Solve_PBTK
spleen_mass_children    Predict spleen mass for children.
spline_heightweight     Smoothing splines for log height vs. age and
                        log body weight vs. age, along with 2-D KDE
                        residuals, by race and gender.
spline_hematocrit       Smoothing splines for log hematocrit vs. age in
                        months, and KDE residuals, by race and gender.
spline_serumcreat       Smoothing splines for log serum creatinine vs.
                        age in months, along with KDE residuals, by
                        race and gender.
tc.dt                   Toxcast Data
tissue.data             Tissue composition and species-specific
                        physiology parameters
tissue_masses_flows     Given a data.table describing a virtual
                        population by the NHANES quantities, generates
                        HTTK physiological parameters for each
                        individual.
tissue_scale            Allometric scaling.
wfl                     WHO weight-for-length charts
