Using CQP queries requires a two-step procedure: At first, you execute a
query using cqp_query. Then, cqp_dump_subcorpus will return a
matrix with the regions of the matches for the query.
cqp_query(corpus, query, subcorpus = "QUERY")
cqp_dump_subcorpus(corpus, subcorpus = "QUERY")
cqp_subcorpus_size(corpus, subcorpus = "QUERY")
cqp_list_subcorpora(corpus)
cqp_drop_subcorpus(corpus)a CWB corpus
a CQP query
subcorpus name
The cqp_query function executes a CQP query. The
cqp_subcorpus_size function returns the number of matches for the CQP
query. The cqp_dump_subcorpus function will return a two-column matrix
with the left and right corpus positions of the matches for the CQP query.
Evert, S. 2005. The CQP Query Language Tutorial. Available online at https://cwb.sourceforge.io/files/CWB_Encoding_Tutorial.pdf
cqp_query(corpus = "REUTERS", query = '"oil";')
#> <pointer: 0x600001ead680>
cqp_subcorpus_size("REUTERS")
#> [1] 78
cqp_dump_subcorpus("REUTERS")
#> [,1] [,2]
#> [1,] 15 15
#> [2,] 50 50
#> [3,] 57 57
#> [4,] 72 72
#> [5,] 89 89
#> [6,] 119 119
#> [7,] 121 121
#> [8,] 129 129
#> [9,] 163 163
#> [10,] 173 173
#> [11,] 177 177
#> [12,] 200 200
#> [13,] 243 243
#> [14,] 300 300
#> [15,] 370 370
#> [16,] 473 473
#> [17,] 494 494
#> [18,] 549 549
#> [19,] 585 585
#> [20,] 608 608
#> [21,] 773 773
#> [22,] 780 780
#> [23,] 840 840
#> [24,] 1053 1053
#> [25,] 1091 1091
#> [26,] 1183 1183
#> [27,] 1244 1244
#> [28,] 1264 1264
#> [29,] 1294 1294
#> [30,] 1570 1570
#> [31,] 1689 1689
#> [32,] 1704 1704
#> [33,] 1818 1818
#> [34,] 1830 1830
#> [35,] 1953 1953
#> [36,] 2087 2087
#> [37,] 2112 2112
#> [38,] 2165 2165
#> [39,] 2189 2189
#> [40,] 2207 2207
#> [41,] 2295 2295
#> [42,] 2346 2346
#> [43,] 2451 2451
#> [44,] 2498 2498
#> [45,] 2520 2520
#> [46,] 2641 2641
#> [47,] 2785 2785
#> [48,] 2843 2843
#> [49,] 2875 2875
#> [50,] 2892 2892
#> [51,] 2920 2920
#> [52,] 2929 2929
#> [53,] 2984 2984
#> [54,] 3008 3008
#> [55,] 3026 3026
#> [56,] 3053 3053
#> [57,] 3072 3072
#> [58,] 3095 3095
#> [59,] 3144 3144
#> [60,] 3152 3152
#> [61,] 3183 3183
#> [62,] 3211 3211
#> [63,] 3252 3252
#> [64,] 3314 3314
#> [65,] 3319 3319
#> [66,] 3368 3368
#> [67,] 3412 3412
#> [68,] 3463 3463
#> [69,] 3468 3468
#> [70,] 3517 3517
#> [71,] 3585 3585
#> [72,] 3611 3611
#> [73,] 3645 3645
#> [74,] 3710 3710
#> [75,] 3749 3749
#> [76,] 3785 3785
#> [77,] 3835 3835
#> [78,] 3999 3999
cqp_query(corpus = "REUTERS", query = '"crude" "oil";')
#> <pointer: 0x600001ead680>
cqp_subcorpus_size("REUTERS", subcorpus = "QUERY")
#> [1] 12
cqp_dump_subcorpus("REUTERS")
#> [,1] [,2]
#> [1,] 14 15
#> [2,] 56 57
#> [3,] 548 549
#> [4,] 584 585
#> [5,] 607 608
#> [6,] 2497 2498
#> [7,] 2842 2843
#> [8,] 2891 2892
#> [9,] 2928 2929
#> [10,] 3644 3645
#> [11,] 3709 3710
#> [12,] 3998 3999