Lexis function

Lexis diagram

Plot a Lexis Diagram from births and deaths data for a given year, month, and day with specific simple ages.

Lexis(
  deaths_data,
  births_data,
  first.date = NULL,
  choose_year,
  choose_month,
  choose_day,
  ages,
  factors = NULL
)

Arguments

• deaths_data: data.frame. A dataset with three variables: date_reg, the registered death date, age, the age of decease; and deaths, the deaths number for that date. See CR_deaths.
• births_data: data data.frame. A dataset with two variables: date_reg, the registered birth date; and births, the births number for that date. See CR_births.
• first.date: character. Optional argument that specifies the first date of interest.
• choose_year: numeric. The year from which the countdown begins until the desired minimum age is reached.
• choose_month: numeric. The month from which the countdown begins until the desired minimum age is reached.
• choose_day: numeric. The day from which the countdown begins until the desired minimum age is reached.
• ages: numeric. An ages vector to plot the diagram.
• factors: numeric. Optional argument to set specific factors to set alpha and delta sections in Lexis Diagram.

Returns

Lexis function returns a list with two objects: diagram, the Lexis diagram; and deaths, the estimated deaths number.

Examples

Lexis(CR_deaths, CR_births, choose_year=2011, choose_month=1, choose_day=1, ages=0:9)$diagram

##Lexis diagram with specific factors
data("births_deaths")
Births <- dplyr::filter(births_deaths$births, sex=="male")
Deaths <- dplyr::filter(births_deaths$deaths, sex=="male")
Lexis(deaths_data=Deaths, births_data=Births, first.date = "1999-01-01",
choose_year=2007, choose_month=1, choose_day=1, ages=0:4,
factors = c(.2,.41,.47,.48,.48))$diagram

References

Rdpack::insert_ref(key="Lexis",package="popstudy")

Author(s)

Cesar Gamboa-Sanabria