Package index

Get growth indicator classifications in `data.frame`-like objects

classify_growth(): Classify multiple growth indicators at the same time using GIGS-recommended growth standards
classify_sfga(): Classify size-for-gestational age in data.frame-like objects with the INTERGROWTH-21^st weight-for-gestational age standard
classify_svn(): Classify small vulnerable newborns in data.frame-like objects with the INTERGROWTH-21^st weight-for-gestational age standard
classify_stunting(): Classify stunting in data.frame-like objects with GIGS-recommended growth standards
classify_wasting(): Classify wasting in data.frame-like objects with GIGS-recommended growth standards
classify_wfa(): Classify weight-for-age in data.frame-like objects with GIGS-recommended growth standards
classify_headsize(): Classify head size in data.frame-like objects with GIGS-recommended growth standards

compute_sfga(): Get size-for-gestational age categories using multiple vectors and the INTERGROWTH-21^st weight-for-gestational age standard
compute_svn(): Get small vulnerable newborn categories using multiple vectors and the INTERGROWTH-21^st weight-for-gestational age standard
compute_stunting(): Get stunting categories using multiple vectors and GIGS-recommended growth standards
compute_wasting(): Get wasting categories using multiple vectors and GIGS-recommended growth standards
compute_wfa(): Get weight-for-age categories using multiple vectors and GIGS-recommended growth standards
compute_headsize(): Get head size categories using multiple vectors and GIGS-recommended growth standards

categorise_sfga(): Categorise birthweight centiles into size-for-gestational age strata
categorise_svn(): Categorise birthweight centiles and gestational ages into small vulnerable newborn strata
categorise_stunting(): Categorise length/height-for-age z-scores into stunting strata
categorise_wasting(): Categorise weight-for-length/height z-scores into wasting strata
categorise_wfa(): Categorise weight-for-age z-scores into weight-for-age strata
categorise_headsize(): Categorise head circumference-for-age z-scores into head circumference-for-age strata

gigs_waz() gigs_lhaz() gigs_wlz() gigs_hcaz(): Calculate z-scores for anthropometric measures according to GIGS guidance

value2zscore() value2centile(): Convert anthropometric measures to z-scores/centiles using international growth standards
zscore2value() centile2value(): Convert z-scores/centiles to anthropometric measures using international growth standards
report_units(): Check required units for a conversion using gigs

Estimation functions from the INTERGROWTH-21^st Project.

ig_fet_estimate_fetal_weight(): Estimate fetal weight in grams using the INTERGROWTH-21^st predictive equation
ig_fet_estimate_ga(): Estimate gestational age using INTERGROWTH-21^st predictive equations

Lists containing data frames with growth curve data, model parameters for WHO and some INTERGROWTH-21^st standards, and data from the LIFE study.

ig_nbs: INTERGROWTH-21^st Newborn Size Standards (including very preterm) growth curve data
ig_nbs_coeffs: INTERGROWTH-21^st Newborn Size Standards GAMLSS coefficients
ig_nbs_ext: Extended INTERGROWTH-21^st Newborn Size Standards (including very preterm) growth curve data
ig_nbs_ext_coeffs: Extended INTERGROWTH-21^st Newborn Size Standards GAMLSS coefficients
ig_png: INTERGROWTH-21^st Postnatal Growth Standards growth curve data
ig_fet: INTERGROWTH-21^st Fetal Standards growth curve data
who_gs: WHO Child Growth Standards growth curve data
who_gs_coeffs: WHO Child Growth Standards LMS coefficients
life6mo: Data extract from the Low birthweight Infant Feeding Exploration (LIFE) study

Options to control how gigs should handle missing or undefined data, and some out-of-bounds values.

.gigs_options: Package-level gigs options
gigs_option_get() gigs_option_set() gigs_input_options_set(): Get and set gigs package-level options