I am confused about the correct usage of sentiment analysis in R. I want to do a textual analysis using the postive / negative list provided by Loughran and McDonald (https://sraf.nd.edu/loughranmcdonald-master-dictionary/).
Previous research says that stemming of the documents under analysis is required. I already performed the stemming. The question I have now: Can I use the sentiment list on the text like they are or do I need to stem them as well?
For me it doesn't make sense to use the complete words on a stemmed document, since R wouldn't detect the words. However, I saw other research doing it.
Can somebody explain to me, what I have to do? Thanks in advance!