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Get / Declare missing values

Source: R/missing_range.R, R/missing_values.R
missing_values.Rd

Functions to extract information about the declared missing values, or to declare such values if they are present in the data.

Usage

missing_range(x)

missing_range(x) <- value

missing_values(x)

missing_values(x) <- value

Arguments

x

A vector.

value

Any vector of values that should be declared as missing (for missing_values) or a numeric vector of length two giving the (inclusive) extents of the range of missing values (for missing_range).

Value

missing_values() will return a vector of one or more values.

missing_range() will return a numeric vector of length 2.

Examples

x <- declared(c(-2, 1:5, -1),
    labels = c(Good = 1, Bad = 5, DK = -1, NotApplicable = -2),
    na_values = c(-1, -2)
)
x
#> <declared<numeric>[7]>
#> [1] NA(-2)      1      2      3      4      5 NA(-1)
#> Missing values: -1, -2
#> 
#> Labels:
#>  value         label
#>      1          Good
#>      5           Bad
#>     -1            DK
#>     -2 NotApplicable

missing_values(x)
#> [1] -1 -2

missing_range(x) <- c(-10, -7)

missing_range(x)
#> [1] -10  -7