R: Study Planning and Adaptation of Sample Size

# Study Planning and Adaptation of Sample Size

## Documentation for package ‘spass’ version 1.3

- DESCRIPTION file

## Help Pages

bssr.1subgroup | Blinded Sample Size Recalculation for a One Subgroup Design
bssr.gee.1subgroup | Blinded Sample Size Recalculation for longitudinal data in a One Subgroup Design
bssr.nb.gf | Blinded Sample Size Reestimation for Longitudinal Count Data with marginal Negative Binomial Distribution and underlying Gamma Frailty with Autoregressive Correlation Structure of Order One
bssr.nb.inar1 | Blinded Sample Size Reestimation for Longitudinal Count Data using the NB-INAR(1) Model
estimcov | Estimation of simulation parameters
fit.nb.gf | Fitting Longitudinal Data from a Gamma Frailty Model with Frailty of Autoregressive Correlation Structure of Order One
fit.nb.inar1 | Fitting Longitudinal Data with Negative Binomial Marginal Distribution and Autoregressive Correlation Structure of Order One: NB-INAR(1)
gen_cov_cor | Generation of a covariance or a correlation matrix
get.groups | Generate Time Series with Negative Binomial Distribution and Multivariate Gamma Frailty with Autoregressive Correlation Structure of Order One with Trend
n.1subgroup | Sample Size Calculation for a One Subgroup Design
n.gee.1subgroup | Sample Size estimation for longitudinal GEE models
n.nb.gf | Sample Size Calculation for Comparing Two Groups when observing Longitudinal Count Data with marginal Negative Binomial Distribution and underlying Gamma Frailty with Autoregressive Correlation Structure of Order One
n.nb.inar1 | Sample Size Calculation for Comparing Two Groups when observing Longitudinal Count Data with marginal Negative Binomial Distribution and Autoregressive Correlation Structure of Order One: NB-INAR(1)
r.1subgroup | Generate dataset of normal distributed observations in a one subgroup design
r.gee.1subgroup | Generate dataset of normal distributed repeated observations in a one subgroup design
rnbinom.gf | Generate Time Series with Negative Binomial Distribution and Multivariate Gamma Frailty with Autoregressive Correlation Structure of Order One
rnbinom.inar1 | Generate Time Series with Negative Binomial Distribution and Autoregressive Correlation Structure of Order One: NB-INAR(1)
sandwich | Calculate the robust covariance estimator for GEE given an
sandwich2 | Generate Time Series with Negative Binomial Distribution and Autoregressive Correlation Structure of Order One: NB-INAR(1)
sim.bssr.1subgroup | Simulation of a One Subgroup Design with Internal Pilot Study
sim.bssr.gee.1subgroup | Simulation of a longitudinal one subgroup design with internal pilot Study
summary.bssrest | Summarizing Blinded Sample Size Reestimation
summary.ssest | Summarizing Initial Sample Size Estimates
test.nb.gf | Testing Hypotheses in Gamma Frailty models
test.nb.inar1 | Testing Hypotheses in NB-INAR(1) model