R: Power of Interrupted Time Series (ITS) Studies

# Power of Interrupted Time Series (ITS) Studies

## Documentation for package ‘PITS’ version 0.1.0

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

## Help Pages

PITS-package | PITS: Power of Interrupted Time Series studies
build_param_grid | Build a factorial parameter grid for power calculations
calculate_power | Estimate statistical power for a single-site ITS design
calculate_power_multi | Estimate statistical power for a multi-site ITS design
diagnose_params | Diagnostic plots for pre-intervention data
estimate_and_calculate | Estimate parameters and calculate power in one step
estimate_baseline | Estimate baseline outcome from pre-intervention data
estimate_its_params | Estimate all ITS nuisance parameters from pre-intervention data
estimate_rho | Estimate AR(1) autocorrelation from pre-intervention data
estimate_sigma | Estimate residual standard deviation from pre-intervention data
estimate_trend | Estimate pre-intervention trend from pre-intervention data
example_cfr_data | Example pre-intervention case fatality rate data
export_results | Export PITS results to CSV and plain-text summary
fit_its_model | Fit a segmented regression model to an ITS dataset
interpret_power | Interpret a power estimate qualitatively
PITS | PITS: Power of Interrupted Time Series studies
plot_its_example | Plot a simulated ITS example
plot_power_curve | Plot power as a function of post-intervention duration
plot_power_heatmap | Plot a power heatmap across two parameters
power_sweep | Design optimisation sweep: power across a range of n_post values
print.pits_power_result | Print method for PITS power results
print.pits_sweep_result | Print method for PITS sweep results
run_its_power | Full single-site ITS power workflow
run_power_grid | Run power calculations across a parameter grid
simulate_its_data | Simulate a single ITS dataset
simulate_predata | Generate synthetic pre-intervention data
summary.pits_power_result | Summary method for PITS power results
validate_params | Validate ITS parameter values before simulation