Whether datey or durationy are NA

Valid datey system ranges:

• Valid dates are from the start of 1000 to the start of 3000.

• Valid durations are 2000 years or less in magnitude.

Values outside the above ranges are treated as NA.

is.na() tests whether a datey or durationy is NA by element.

anyNA() tests whether any element of a datey or durationy is NA.

For convenience,

• the constants NA_datey_ and NA_durationy_ are the datey and durationy versions of NA respectively, and

• integer constants describing the above valid ranges are also provided.

For performance reasons, intermediate calculations may not check for NAs.

Usage

# S3 method for class 'datey'
is.na(x)

# S3 method for class 'datey'
anyNA(x, recursive = FALSE)

# S3 method for class 'datey_interval'
is.na(x)

# S3 method for class 'datey_interval'
anyNA(x, recursive = FALSE)

# S3 method for class 'durationy'
is.na(x)

# S3 method for class 'durationy'
anyNA(x, recursive = FALSE)

Arguments

x

The datey or durationy to test for NA.

recursive

Currently required to be FALSE (the default).

Value

is.na() returns a vector of logical the same length as x. anyNA() always returns TRUE or FALSE, never NA and never anything other than a single value.

See also

NA_datey_, NA_durationy_, integer_constants

Examples

  t <- c(NA_datey_, datey(2000), datey(999.99, strict = FALSE))
  is.na(t)
#> [1]  TRUE FALSE  TRUE
  anyNA(t)
#> [1] TRUE

  d <- c(NA_durationy_, durationy(1.5))
  is.na(d)
#> [1]  TRUE FALSE
  anyNA(d)
#> [1] TRUE