data frame including columns Aika (character string indicating the date), Alue (character string indicating the region) and val (numeric indicating the number of new cases)
region
characters string indicating the region for which the R series is computed
start
beginning date of the time window for which the R is computed
end
ending date of the time window for which the R is computed
confInt
decimal between 0 and 1, indicating the level of the confidence interval of R