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Integer numeric series

Source: R/integers.R, R/naturalx.R
integers.Rd

Use integers() to create a numeric series whose discrete values are integers within a specified range, possibly unbounded on either end. Use natural0() and natural1() for the natural numbers starting at 0 or 1.

Usage

integers(from = -Inf, to = Inf)

natural1()

natural0()

Arguments

from, to

Numeric values defining the range of integers. Defaults to -Inf and Inf, representing all integers; the series is not closed, so -Inf and Inf are never discrete values.

Value

A numeric series (arithmetic, class "dsct_arithmetic") whose discrete values are the integers in the specified range.

See also

arithmetic()

Examples

integers()                  # All integers
#> Integer series of length Inf:
#> ..., -2, -1, 0, 1, 2, 3, ...
integers(from = 0)          # Non-negative integers
#> Integer series of length Inf:
#> 0, 1, 2, 3, 4, 5, ...
integers(to = 1.5)          # Ends at 1.
#> Integer series of length Inf:
#> ..., -4, -3, -2, -1, 0, 1
integers(-5, 5) # Integers from -5 to 5.
#> Integer series of length 11:
#> -5, -4, -3, ..., 3, 4, 5
natural1()
#> Integer series of length Inf:
#> 1, 2, 3, 4, 5, 6, ...
natural0()
#> Integer series of length Inf:
#> 0, 1, 2, 3, 4, 5, ...

# Infinity is never contained in the series.
has_discretes(integers(), Inf)
#> [1] FALSE