Base method extensions for tokens objects
Extensions of base R functions for tokens objects.
## S3 method for class 'tokens' unlist(x, recursive = FALSE, use.names = TRUE) ## S3 method for class 'tokens' x[i, drop_docid = TRUE] ## S3 method for class 'tokens' t1 + t2 ## S3 method for class 'tokens' c(...)
unlist returns a simple vector of characters from a
tokens object.
c(...) and + return a tokens object whose documents
have been added as a single sequence of documents.
toks <- tokens(c(d1 = "one two three", d2 = "four five six", d3 = "seven eight")) str(toks) toks[c(1,3)] # combining tokens toks1 <- tokens(c(doc1 = "a b c d e", doc2 = "f g h")) toks2 <- tokens(c(doc3 = "1 2 3")) toks1 + toks2 c(toks1, toks2)
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