These functions merge two or more frequency lists, adding up the frequencies. In the current implementation, original ranks are lost when merging.
Value
An object of class freqlist.
Examples
(flist1 <- freqlist("A first toy corpus.", as_text = TRUE))
#> Frequency list (types in list: 4, tokens in list: 4)
#> rank type abs_freq nrm_freq
#> ---- ------ -------- --------
#> 1 a 1 2500
#> 2 corpus 1 2500
#> 3 first 1 2500
#> 4 toy 1 2500
(flist2 <- freqlist("A second toy corpus.", as_text = TRUE))
#> Frequency list (types in list: 4, tokens in list: 4)
#> rank type abs_freq nrm_freq
#> ---- ------ -------- --------
#> 1 a 1 2500
#> 2 corpus 1 2500
#> 3 second 1 2500
#> 4 toy 1 2500
(flist3 <- freqlist("A third toy corpus.", as_text = TRUE))
#> Frequency list (types in list: 4, tokens in list: 4)
#> rank type abs_freq nrm_freq
#> ---- ------ -------- --------
#> 1 a 1 2500
#> 2 corpus 1 2500
#> 3 third 1 2500
#> 4 toy 1 2500
freqlist_merge(flist1, flist2)
#> Frequency list (types in list: 5, tokens in list: 8)
#> rank type abs_freq nrm_freq
#> ---- ------ -------- --------
#> 1 a 2 2500
#> 2 corpus 2 2500
#> 3 toy 2 2500
#> 4 first 1 1250
#> 5 second 1 1250
freqlist_merge_all(flist1, flist2, flist3)
#> Frequency list (types in list: 6, tokens in list: 12)
#> rank type abs_freq nrm_freq
#> ---- ------ -------- --------
#> 1 a 3 2500.000
#> 2 corpus 3 2500.000
#> 3 toy 3 2500.000
#> 4 first 1 833.333
#> 5 second 1 833.333
#> 6 third 1 833.333
freqlist_merge_all(list(flist1, flist2, flist3)) # same result
#> Frequency list (types in list: 6, tokens in list: 12)
#> rank type abs_freq nrm_freq
#> ---- ------ -------- --------
#> 1 a 3 2500.000
#> 2 corpus 3 2500.000
#> 3 toy 3 2500.000
#> 4 first 1 833.333
#> 5 second 1 833.333
#> 6 third 1 833.333