data: A data frame from which the rows are the original data from which the simualte data are calculated (by the average of a bootstrap sample. The columns corresponds to the variables for which the simulation should be done. The first column must be a factor allowing to group the rows. A bootstrap simulation is done for each level of this factor.
nb.simul: The number of simulations.
Details
The simulation is independently done for each level of the factor. The number of rows can be different for each levels.
Returns
mean: Data.frame with all the levels of the factor variable, and for each variable, the mean of the original data.
simul: Data.frame with all the levels of the factor variable, and for each variable, the nb.simul bootstrap simulations.
simul.mean: Data.frame with all the levels of the factor variable, and for each variable, the mean of the simulated data.