.intrinsic_growth_rate
                        Calculate Intrinsic Growth Rate
age_group_type          Infer Age Label Type
age_labels              Create Age Labels
age_lower               Lower Limits, Midpoints, and Upper Limits of
                        Age Groups
booth_standard          Booth Standard
check_age               Validity Checks for Age Labels
check_equal_length      Check that Arguments have Same Length
check_n                 Check Whole Number
check_no_overlap_colnums
                        Check that Colnum Vectors do not Overlap
combine_age             Aggregate Age Group Labels
e0_to_lifetab_logit     Derive Life Tables that Match Life
                        Expectancies, using a Brass Logit Model
ex_to_lifetab_brass     Derive Life Tables that Match Life
                        Expectancies, using a Brass Logit Model
find_label_female       Identify Sex or Gender Labels Referring to
                        Females
find_label_male         Identify Sex or Gender Labels Referring to
                        Males
find_var_age            Identify an Age Variable
find_var_sexgender      Identify a Sex or Gender Variable
find_var_time           Identify a Time Variable
groups_colnums          Get a named vector of column indices for the
                        grouping variables in a grouped data frame
irn_fert                Age-Specific Fertility Rates in Iran
lifetab                 Calculate Life Tables or Life Expectancies
logit                   Logit and Inverse-Logit Functions
matrix_to_list_of_cols
                        Turn a Matrix Into a List of Columns or Rows
nzl_mort                Mortality Data for New Zealand
nzl_mort_rvec           Mortality Data and Probabilistic Rates for New
                        Zealand
q0_to_m0                Convert q0 to m0
reformat_age            Reformat Age Group Labels
reformat_sex            Reformat a Binary Sex Variable
rr3                     Randomly Round A Vector of Integers to Base 3
set_age_open            Specify Open Age Group
tfr                     Calculate Total Fertility Rates
tfr_to_asfr_scale       Derive Age-Specific Fertility Rates that Match
                        Total Fertility Rates by Scaling
to_matrix               Build a Matrix from Measure and ID Variables
trim_01                 Trim Values So They Are Between 0 and 1
west_lifetab            Coale-Demeny West Model Life Tables
