# Broken Stick Model for Irregular Longitudinal Data

## Documentation for package ‘brokenstick’ version 2.6.0

- DESCRIPTION file.
- User guides, package vignettes and other documentation.
- Package NEWS.

## Help Pages

brokenstick-package | 'brokenstick': A package for irregular longitudinal data.
brokenstick | Fit a 'brokenstick' model to irregular data
brokenstick-class | Class 'brokenstick'
coef.brokenstick | Extract Model Coefficients from brokenstick Object
control_kr | Set controls for Kasim-Raudenbush sampler
EB | Empirical Bayes predictor for random effects
fitted.brokenstick | Calculate fitted values
fit_200 | Broken stick model with nine lines for 200 children
fit_200_light | Broken stick model with nine lines for 200 children (light)
get_knots | Obtain the knots from a broken stick model
get_omega | Extract Variance and Correlation Components
get_r2 | Obtain proportion of explained variance from a broken stick model
kr | Kasim-Raudenbush sampler for two-level normal model
make_basis | Create linear splines basis
parse_formula | Parse formula for brokenstick model
plot.brokenstick | Plot observed and fitted trajectories by group
plot_trajectory | Plot observed and fitted trajectories from fitted brokenstick model
predict.brokenstick | Predict from a 'brokenstick' model
print.brokenstick | Print brokenstick object
residuals.brokenstick | Extract residuals from brokenstick model
robust_chol2inv | Robust inversion of symmetric matrices
set_control | Set controls to steer calculations
smocc_200 | Infant growth of 0-2 years, SMOCC data extract
summary.brokenstick | Create summary of brokenstick object
weightloss | Weight loss self-measurement data