year_month: year_month

In 1Edtrujillo1/udeploy: Back-end & Front-end functions

Description

Return a vector of possible dates of a years, or dates of a month in a year.

Usage

year_month(df, select_year, select_month = NULL, previous = FALSE)

Arguments

df	dataset to obtain the dates
select_year	year that we want to obtain the vector
select_month	name of the month of the year that we want to obtain the vector
previous	If we want to obtain the previous year or month

Details

This function allows you to return a vector of dates from a year (or the previous one) OR dates of a month of a year (or the previous month)

Value

"This function returns different results based on the arguments select_year, select_month & previous".

• If previous = FALSE and select_year return a vector of dates of that year in the date variable.

• If previous = TRUE and select_year return a vector of dates of the previous year in the date variable.

• If previous = FALSE and select_month return a vector of dates of that month of the year select_year in the date variable.

• If previous = TRUE and select_month return a vector of dates of the previous month year select_year in the date variable.

Note

• If the df does not have a date variable, then return a string message.

• If the selected select_year is not included in the observations of the date variable from df then return a string message.

• If previous = TRUE & select_month = "JANUARY" then will return a string message, since it returns the observations of the previous of the exact year select_year ( not the previous one ).

• If previous = TRUE and there is no previous select_year or select_month, then will return a string message.

Author(s)

Eduardo Trujillo

1Edtrujillo1/udeploy documentation built on July 13, 2021, 9:12 p.m.