sitar1.4.0 package

Compare Likelihoods of Fitted SITAR Objects

Bootstrap standard errors for SITAR peak velocity and age at peak velo...

Ways to compare SITAR models for fit

Update the b fixed effect to minimise the b-c random effect correlatio...

LMS conversion to and from z-scores

Plot and zap velocity outliers in growth curves

Tabulate BIC of SITAR models by degrees of freedom, fixed effects and ...

Find degrees of freedom for a natural spline curve to minimise BIC or ...

Function call with optional inverse

Extract elements of fitted SITAR models

Identify peak or trough on curve

Invert an expression defining a data transformation

Convert to/from measurement from/to z-score with growth reference

Estimate LMS curves from tabulated growth reference centiles

Plot multiple growth curves

Convert between IOTF, WHO and CDC prevalence rates for child thinness,...

Optimal design for growth reference centile studies

Plot frequency distributions(s) for given L, M and S values in LMS met...

Pipe operator

Plot SITAR model

Plot multiple growth curves to identify outliers

Predict SITAR model

Print SITAR model

Print summary of SITAR model

Recalibrate x, y data using SITAR random effects

SITAR (SuperImposition by Translation And Rotation) growth curve analy...

Fit SITAR growth curve model

Sample from SITAR dataset

Create summary of SITAR model

Select equally spaced ages from a vector of ages

Identify outliers with abnormal velocity in growth curves

Par args xaxs and yaxs option d

Adjust x and y variables for SITAR random effects

Express z-scores as centile character strings for plotting