dt_dates_simple <- data.table::data.table(
Start_Date = as.Date(c("2020-02-03", "2020-03-01") ),
End_Date = as.Date(c("2020-02-05", "2020-03-02") ),
group = c("A", "B")
)
row_expand_dates(dt_dates_simple, "Start_Date", "End_Date", "Date")[]
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