Discrete Vector tools

discrete creates a discrete vector which is distinct from a continuous vector, or a factor/ordered vector. The other function are tools for manipulating descrete vectors.

as.discrete(x, ...)
# Default S3 method
as.discrete(x, ...)
discrete(x, levels = sort(unique.default(x), na.last = TRUE), exclude = NA)
# S3 method for class 'discrete'
x[...] <- value
# S3 method for class 'discrete'
x[..., drop = FALSE]
# S3 method for class 'discrete'
x[[i]]
is.discrete(x)
# S3 method for class 'discrete'
is.na(x) <- value
# S3 method for class 'discrete'
length(x) <- value

Arguments

x

a vector

drop

Should unused levels be dropped.

exclude

logical: should NA be excluded.

i

indexing vector

levels

charater: list of individual level values

value

index of elements to set to NA

...

arguments to be passed to other functions

Details

as.discrete converts a vector into a discrete vector.

discrete creates a discrete vector from provided values.

is.discrete tests to see if the vector is a discrete vector.

Value

as.discrete, discrete returns a vector of discrete type.

is.discrete returan logical TRUE if the vector is of class discrete other wise it returns FALSE.

Author

Charles Dupont

See also

[[, [, factor

Examples

a <- discrete(1:25)
a
#>  [1]  1  2  3  4  5  6  7  8  9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
#> attr(,"levels")
#>  [1]  1  2  3  4  5  6  7  8  9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
#> attr(,"class")
#> [1] "discrete"

is.discrete(a)
#> [1] TRUE

b <- as.discrete(2:4)
b
#> [1] 2 3 4
#> attr(,"levels")
#> [1] 2 3 4
#> attr(,"class")
#> [1] "discrete"