Simplify: Collapse a complex array into unique components
In dkrozelle/toolboxR: Collection of functions and scripts for bioinformatics.

Given a vector or list, break into atomic units, remove any redundancies and return a vector of unique elements

1 2	Simplify(x, delim = "; ", unique = F, na.rm = T, ignore.case = T, sort = T, missing.value = "NA", null.return = NA)

`x`	Vector or list. This can contain all valid element types, however the current version always returns a character type.
`delim`	A non-null character use to both split complex character strings, and delimit output string elements containing more than one element.
`unique`	Logical If TRUE, warns when more than one element is returned from x after simplification.
`na.rm`	Logical if TRUE individual NA elements will be removed before simplification.
`ignore.case`	Logical should character string comparisons ignore case. A FALSE argument could return "FOO; Foo; foo" while a TRUE argument would only return "FOO".
`sort`	Logical should the final values be sorted before return.
`null.return`	Value to be returned if na.rm = TRUE and non-NA values do not exist. By default NA will be returned for null return even if na.rm = TRUE, set this value to change this behavior.