check_set_equality {dm} | R Documentation |
Check column values for set equality
Description
check_set_equality()
is a wrapper of check_subset()
.
It tests if one table is a subset of another and vice versa, i.e., if both sets are the same. If not, it throws an error.
Usage
check_set_equality(
x,
y,
...,
x_select = NULL,
y_select = NULL,
by_position = NULL
)
Arguments
x , y |
A data frame or lazy table. |
... |
These dots are for future extensions and must be empty. |
x_select , y_select |
Key columns to restrict the check, processed with
|
by_position |
Set to |
Value
Returns x
, invisibly, if the check is passed.
Otherwise an error is thrown and the reason for it is explained.
Examples
data_1 <- tibble::tibble(a = c(1, 2, 1), b = c(1, 4, 1), c = c(5, 6, 7))
data_2 <- tibble::tibble(a = c(1, 2, 3), b = c(4, 5, 6), c = c(7, 8, 9))
# this is failing:
try(check_set_equality(data_1, data_2, x_select = a, y_select = a))
data_3 <- tibble::tibble(a = c(2, 1, 2), b = c(4, 5, 6), c = c(7, 8, 9))
# this is passing:
check_set_equality(data_1, data_3, x_select = a, y_select = a)
# this is still failing:
try(check_set_equality(data_2, data_3))
[Package dm version 1.0.10 Index]