check_subset {dm} | R Documentation |
check_subset()
tests if the values of the chosen columns c1
of data frame t1
are a subset of the values
of columns c2
of data frame t2
.
check_subset(t1, c1, t2, c2)
t1 |
The data frame that contains the columns |
c1 |
The columns of |
t2 |
The data frame that contains the columns |
c2 |
The columns of the second data frame which have to contain all values of |
Returns t1
, invisibly, if the check is passed.
Otherwise an error is thrown and the reason for it is explained.
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 passing:
check_subset(data_1, a, data_2, a)
# this is failing:
try(check_subset(data_2, a, data_1, a))