Validate that a vector has only unique values

Validate that a vector has only unique values

Usage

hasOnlyDistinctValues(values, na.rm = TRUE)

validateHasOnlyDistinctValues(values, na.rm = TRUE)

Arguments

values

An array of values

na.rm

Logical to decide if missing values should be removed from the duplicate checking. Note that duplicate NA values are flagged if na.rm=FALSE.

Value

• hasOnlyDistinctValues returns TRUE if all values are unique.

• validateHasOnlyDistinctValues() returns NULL if only unique values present, otherwise produces error.

Examples

hasOnlyDistinctValues(c("x", "y"))
#> [1] TRUE
hasOnlyDistinctValues(c("x", "y", "x"))
#> [1] FALSE
hasOnlyDistinctValues(c("x", NA, "y", NA), na.rm = FALSE)
#> [1] FALSE
hasOnlyDistinctValues(c("x", NA, "y", NA), na.rm = TRUE)
#> [1] TRUE

validateHasOnlyDistinctValues(c("x", "y")) # NULL
#> NULL
# validateHasOnlyDistinctValues(c("x", "y", "x")) # error