stem_in_place: stem but don't tokenize
In lmkirvan/rakeR: An implementation of rapid automatic keyword extraction for R.

a helper function to stem your chr vector and return stemmed vector this reduces the total vocab significantly

1	stem_in_place(x, language = "english")

`x`	is a chr vector.
`language`	should be one of “danish”, “dutch”, “english”, “finnish”, “french”, “german”, “hungarian”, “italian”, “norwegian”, “porter”, “portuguese”, “romanian”, “russian”, “spanish”, “swedish”, “turkish”