calpr: Calendar Periods

Description Usage Arguments Details Value See Also Examples

Identify which elements in a vector of dates correspond to complete quarter/years.

complete_quarters(x, f)

complete_years_m(x, f)

complete_years_q(x, f)

`x`	A vector of dates, or something that can be coerced into one.
`f`	A factor the same length as `x`, or an atomic vector to be turned into a factor, that is used to group `x`.

This function counts the unique year-month/year-quarters in x and returns which elements of x belong to a year-quarter/year with the appropriate number of year-month/year-quarters.

For example, complete_quarters returns TRUE for an element of x if there are three distinct year-months in the corresponding year-quarter to which this element of x belongs.

NAs return always return NA.

If f is given then x is split according to f before finding complete quarters/years in x.

A logical vector, the same length as x.

complete_periods for checking completeness of non-standard calendar periods.

# Which elements in a monthly series form complete quarters?
x <- seq(as.Date('2018-01-01'), as.Date('2019-04-01'), 'month')
x[complete_quarters(x)]
x[complete_quarters(x, c(rep('a', 10), rep('b', 6)))]

## Not run: 
 # Can be done manually with zoo
 library(zoo)
 x <- unique(as.yearmon(x))
 f <- factor(as.yearqtr(x))
 x[as.character(as.yearqtr(x)) %in% levels(f)[tabulate(f) == 3]]

## End(Not run)

# Which elements in a monthly series form complete years?
x[complete_years_m(x)]

# Which elements in a quarterly series form complete years?
y <- seq(as.Date('2018-01-01'), as.Date('2019-04-01'), 'quarter')
y[complete_years_q(y)]