are_set_equal: Set comparisons

In assertive.sets: Assertions to Check Properties of Sets

Description

Checks on the contents of two vectors (ignoring the order of the elements).

Usage

assert_are_disjoint_sets(x, y, severity = getOption("assertive.severity",
  "stop"))

assert_are_intersecting_sets(x, y, severity = getOption("assertive.severity",
  "stop"))

assert_are_set_equal(x, y, severity = getOption("assertive.severity", "stop"))

assert_is_set_equal(x, y, severity = getOption("assertive.severity", "stop"))

assert_is_subset(x, y, strictly = FALSE,
  severity = getOption("assertive.severity", "stop"))

assert_is_superset(x, y, strictly = FALSE,
  severity = getOption("assertive.severity", "stop"))

are_disjoint_sets(x, y, .xname = get_name_in_parent(x),
  .yname = get_name_in_parent(y))

are_intersecting_sets(x, y, .xname = get_name_in_parent(x),
  .yname = get_name_in_parent(y))

are_set_equal(x, y, .xname = get_name_in_parent(x),
  .yname = get_name_in_parent(y))

is_set_equal(x, y, .xname = get_name_in_parent(x),
  .yname = get_name_in_parent(y))

is_subset(x, y, strictly = FALSE, .xname = get_name_in_parent(x),
  .yname = get_name_in_parent(y))

is_superset(x, y, strictly = FALSE, .xname = get_name_in_parent(x),
  .yname = get_name_in_parent(y))

Arguments

x	A vector.
y	Another vector.
severity	How severe should the consequences of the assertion be? Either "stop", "warning", "message", or "none".
strictly	Logical. If TRUE, x and y should not be set equal.
.xname	Not intended to be used directly.
.yname	Not intended to be used directly.

Value

The is_* functions return TRUE or FALSE. The assert_* functions throw an error in the event of failure.

See Also

sets, set_is_equal

Examples

# Same contents, different order, returns TRUE
are_set_equal(1:5, 5:1)

# Different lengths
are_set_equal(1:5, 1:6)

# First vector contains values not in second vector
are_set_equal(1:5, c(1:4, 4))

# Second vector contains values not in first vector
are_set_equal(c(1:4, 4), 1:5)

# Is x a subset of y?
is_subset(1:4, 1:5)
is_subset(1:5, 1:4)

# Is x a superset of y?
is_superset(1:5, 1:4)
is_superset(1:4, 1:5)

# The strictly argument checks for a strict sub/superset
is_subset(1:5, 1:5, strictly = TRUE)
is_superset(1:5, 1:5, strictly = TRUE)

# Do x and y have common elements?
are_intersecting_sets(1:4, 3:6)
are_disjoint_sets(1:4, 3:6)

# Types are coerced to be the same, as per base::setdiff
are_set_equal(1:4, c("4", "3", "2", "1"))

# Errors are thrown in the event of failure
assert_are_set_equal(1:5, 5:1)
assertive.base::dont_stop(assert_are_set_equal(1:5, 1:6))

assert_is_subset(1:4, 1:5)
assertive.base::dont_stop(assert_is_subset(1:5, 1:4))

assert_is_superset(1:5, 1:4)
assertive.base::dont_stop(assert_is_superset(1:4, 1:5))

# A common use case: checking that data contains required columns
required_cols <- c("Time", "weight", "Diet")
assert_is_superset(colnames(ChickWeight), required_cols)

assertive.sets documentation built on May 2, 2019, 3:39 p.m.