Summarize simulations based on a combination of multiple parameter values
# S3 method for plcp_multi_sim
summary(object, para = "time:treatment",
model = NULL, alpha = 0.05, model_selection = NULL,
LRT_alpha = 0.1, ...)
A multiple simulation object created with
simulate.plcp_multi
The name of the fixed or random effect that should be summarized.
Specifies which model that should be summarized. Accepts either
a character
with the name used in sim_formula_compare
, or
an integer
value.
Indicates the significance level. Default is 0.05 (two-tailed), one-tailed tests are not yet implemented.
Indicates if model selection should be performed. If NULL
(default),
all models are returned, if FW
or BW
model selection is performed using LRT, and the result
is based on the selected model from each simulation. See summary.plcp_sim
for more information.
Indicates the alpha level used when comparing models during model selection.
Optional arguments.
A list
with class plcp_multi_sim_summary
. It can be coursed to a data.frame
,
using as.data.frame
. Each row summarizes one of the parameter combinations used in the simulation.
In addition to the setup parameter values, it contains the following columns:
parameter
is the name of the coefficient
M_est
is the mean of the estimates taken over all the simulations.
theta
is the population parameter values specified with study_parameters
M_se
is the mean estimated standard error taken over all the simulations.
SD_est
is the empirical standard error; i.e. the standard
deviation of the distribution of the generated estimates
power
is the empirical power of the Wald Z test, i.e. the proportion
of simulated p-values < alpha
power_satt
is the empirical power of the Wald t test using
Satterthwaite's degree of freedom approximation.
satt_NA
is the proportion of Satterthwaite's approximations that failed.
prop_zero
is the proportion of the simulated estimates that
are zero; only shown for random effects.