content_transformer

From tm v0.6-2 by Ingo Feinerer

Create content transformers, i.e., functions which modify the content of an R object.

content_transformer(FUN)

A function with two arguments:

x: an R object with implemented content getter (content) and setter (content<-) functions.
...: arguments passed over to FUN.

data("crude")
crude[[1]]
(f <- content_transformer(function(x, pattern) gsub(pattern, "", x)))
tm_map(crude, f, "[[:digit:]]+")[[1]]

Documentation reproduced from package tm, version 0.6-2, License: GPL-3

mani-yuki@hotmail.co.jp at Jun 12, 2019 tm v0.7-6

# NOT RUN { data("crude") crude[[1]] (f <- content_transformer(function(x, pattern) gsub(pattern, "", x))) tm_map(crude, f, "[[:digit:]]+")[[1]] # }