r - Error: could not find function "%>%" -


i'm using example, going through steps , working far except method below: 

 words <- dtm %>%  as.matrix %>%  colnames %>%  (function(x) x[nchar(x) < 20])

error: not find function "%>%"

i don't understand benefit of using special operator %>% is, , feedback great.

you need install package magrittr first, should work.

install.packages("magrittr") library(magrittr)

the pipe operator %>% introduced "decrease development time , improve readability , maintainability of code."

but has decide himself if fits workflow , makes things easier. more information on magrittr, click here.

not using pipe %>%, code return same code:

words <- colnames(as.matrix(dtm)) words <- words[nchar(words) < 20] words

edit: (i extending answer because of useful comment made @molx)

despite being magrittr, pipe operator more commonly used package dplyr (which requires , loads magrittr), whenever see using %>% make sure shouldn't load dplyr instead.


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