stringi (version 0.2-5)

stri_unique: Extract Unique Elements

Description

This function returns a character vector like str, but with duplicate elements removed.

Usage

stri_unique(str, opts_collator = NULL)

Arguments

str

character vector

opts_collator

a named list with ICU Collator's options as generated with stri_opts_collator, NULL for default collation options

Value

• Returns a character vector.

Details

As usual in stringi, no attributes are copied. Unlike unique, this function tests for canonical equivalence of strings. Such an operation is locale-dependent.

See Also

Other locale_sensitive: %!==%, %!=%, %<=%< a="">, %<%< a="">, %===%, %==%, %>=%, %>%, %stri!==%, %stri!=%, %stri<=%< a="">, %stri<%< a="">, %stri===%, %stri==%, %stri>=%, %stri>%; stri_cmp, stri_cmp_eq, stri_cmp_equiv, stri_cmp_ge, stri_cmp_gt, stri_cmp_le, stri_cmp_lt, stri_cmp_neq, stri_cmp_nequiv, stri_compare; stri_count_coll; stri_detect_coll; stri_duplicated, stri_duplicated_any; stri_enc_detect2; stri_extract_all_coll, stri_extract_first_coll, stri_extract_first_coll, stri_extract_last_coll, stri_extract_last_coll; stri_extract_words; stri_locate_all_coll, stri_locate_first_coll, stri_locate_first_coll, stri_locate_last_coll, stri_locate_last_coll; stri_locate_boundaries; stri_locate_words; stri_opts_collator; stri_order, stri_sort; stri_replace_all_coll, stri_replace_first_coll, stri_replace_first_coll, stri_replace_last_coll, stri_replace_last_coll; stri_split_boundaries; stri_split_coll; stri_trans_tolower, stri_trans_totitle, stri_trans_toupper; stri_wrap; stringi-locale; stringi-search-coll

Examples

if (stri_install_check(silent=TRUE))
# normalized and non-unicode-normalized version of the same code point:
stri_unique(c("\u0105", stri_trans_nfkd("\u0105")))