An object of class simsum.

Significance level for confidence intervals based on Monte Carlo standard errors. Ignored if a simsum object with control parameter mcse = FALSE is passed.

Degrees of freedom of a t distribution that will be used to calculate confidence intervals based on Monte Carlo standard errors. If NULL (the default), quantiles of a Normal distribution will be used instead. However, using Z-based or t-based confidence intervals is valid only for summary statistics such a bias and coverage. Confidence intervals for other quantities may not be appropriate, therefore their usage is not recommended.

Summary statistics to include; can be a scalar value or a vector (for multiple summary statistics at once). Possible choices are:

• nsim, the number of replications with non-missing point estimates and standard error.

• thetamean, average point estimate.

• thetamedian, median point estimate.

• se2mean, average variance.

• se2median, median variance.

• bias, bias in point estimate.

• empse, empirical standard error.

• mse, mean squared error.

• relprec, percentage gain in precision relative to the reference method.

• modelse, model-based standard error.

• relerror, relative percentage error in standard error.

• cover, coverage of a nominal level\

• becover, bias corrected coverage of a nominal level\

• power, power of a (1 - level)\

Defaults to NULL, in which case all possible summary statistics are included.

Ignored.