In a simulation, an include_* dataset is selected that corresponds to the given wpp.year passed to the function run.e0.mcmc. It is merged with an e0 dataset from the corresponding wpp package using the country_code column. Thus, the country entries in this dataset should correspond to entries in the e0F (e0M) dataset.
The package contains also a dataset called my_e0_template (in extdata directory) which is a template for user-specified e0 time series. It has the same structure as the e0 dataset, except that most of the columns are optional. The only required column is country_code (see description of the argument my.e0.file in run.e0.mcmc).