Combine Transformations
Fold multiple transformations (mappings) into a single one.
tm_reduce(x, tmFuns, ...)
x |
A corpus. |
tmFuns |
A list of tm transformations. |
... |
Arguments to the individual transformations. |
A single tm transformation function obtained by folding tmFuns
from right to left (via Reduce(..., right = TRUE)).
Reduce for R's internal folding/accumulation mechanism, and
getTransformations to list available transformation
(mapping) functions.
data(crude)
crude[[1]]
skipWords <- function(x) removeWords(x, c("it", "the"))
funs <- list(stripWhitespace,
skipWords,
removePunctuation,
content_transformer(tolower))
tm_map(crude, FUN = tm_reduce, tmFuns = funs)[[1]]Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.