Provides easy access for sentiment lexicons for those who want to do text analysis in Portuguese texts. As of now, two Portuguese lexicons are available: 'SentiLex-PT02' and 'OpLexicon' (v2.1 and v3.0).
lexiconPT was developed to make it easy for analysts and researchers who want to perform text analysis and mining in Portuguese texts in R. Its main contribution is that it easily imports cleaned versions of some famous Portuguese lexicons, such as OpLexicon and SentiLex. These datasets can be loaded to R using the data() function:
data("sentiLex_lem_PT02")
data("oplexicon_v2.1")
data("oplexicon_v3.0.rda")
Also, you can individually check a word sentiment by using the function lexiconPT::get_word_sentiment():
get_word_sentiment("temer")
The cleaning process can be seen in data-raw/setup.R. Note that, in order to clean the SentiLex dataset in a tidy way, some assumptions had to be made (I'm gonna write a blog post about it). On the other hand, both OpLexicon versions were already cleaned.
To know how both lexicons were developed, please see the help pages of the datasets to check their references.
To install lexiconPT, please run devtools::install_github("sillasgonzaga/lexiconPT").