stri_duplicated()
determines which strings in a character vector
are duplicates of other elements.stri_duplicated_any()
determines if there are any duplicated
strings in a character vector.
stri_duplicated(str, fromLast = FALSE, opts_collator = NULL)stri_duplicated_any(str, fromLast = FALSE, opts_collator = NULL)
stri_opts_collator
, NULL
for default collation optionsstri_duplicated()
returns a logical vector of the same length
as str
. Each of its elements indicates if an equivalent string
already appeared in str
.stri_duplicated_any()
returns a single non-negative integer.
Value of 0 indicates that all the elements in str
are unique.
Otherwise, it gives the index of the first non-unique element.
These functions test for canonical equivalence of strings. Such an operation is locale-dependent.
%!==%
,
%!=%
, %<=%< 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_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_unique
; stri_wrap
;
stringi-locale
;
stringi-search-coll
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_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_unique
; stri_wrap
;
stringi-locale
;
stringi-search-coll