README.md
In franc: Detect the Language of Text

franc

Detect the Language of Text

Franc has no external dependencies and supports 310 languages; all languages spoken by more than one million speakers. Franc is a port of the JavaScript project of the same name, see https://github.com/wooorm/franc.

install.packages("franc")

library(franc)

Simply supply the text, and franc detects its language:

franc("Alle menslike wesens word vry")

#> [1] "afr"

franc("এটি একটি ভাষা একক IBM স্ক্রিপ্ট")

#> [1] "ben"

franc("Alle mennesker er født frie og")

#> [1] "nno"

head(franc_all("O Brasil caiu 26 posições"))

#>   language     score
#> 1      por 1.0000000
#> 2      src 0.8800937
#> 3      glg 0.8702576
#> 4      snn 0.8637002
#> 5      bos 0.8168618
#> 6      hrv 0.8103044

und is the undefined language, this is returned if the input is too short (shorter than 10 characters by default).

franc("the")

#> [1] "und"

franc("the", min_length = 3)

#> [1] "sco"

You can provide a whitelist or a blacklist:

franc_all("O Brasil caiu 26 posições",
    whitelist = c("por", "src", "glg", "spa"))

#>   language     score
#> 1      por 1.0000000
#> 2      src 0.8800937
#> 3      glg 0.8702576
#> 4      spa 0.7995316

head(franc_all("O Brasil caiu 26 posições",
    blacklist = c("src", "glg", "lav")))

#>   language     score
#> 1      por 1.0000000
#> 2      snn 0.8637002
#> 3      bos 0.8168618
#> 4      hrv 0.8103044
#> 5      cat 0.8065574
#> 6      spa 0.7995316

The R version of franc supports 310 languages. By default only the languages with more than 1 million speakers are used, this is 175 languages. The min_speakers argument can relax this, and allows using more languages:

head(franc_all("O Brasil caiu 26 posições"))

#>   language     score
#> 1      por 1.0000000
#> 2      src 0.8800937
#> 3      glg 0.8702576
#> 4      snn 0.8637002
#> 5      bos 0.8168618
#> 6      hrv 0.8103044

head(franc_all("O Brasil caiu 26 posições", min_speakers = 0))

#>   language     score
#> 1      lad 1.0000000
#> 2      por 0.9442724
#> 3      pov 0.8788147
#> 4      ast 0.8677576
#> 5      roh 0.8363556
#> 6      src 0.8310482