Extract words from a sentence.
Extract words from a sentence.
word(string, start = 1L, end = start, sep = fixed(" "))string |
input character vector. |
start |
integer vector giving position of first word to extract. Defaults to first word. If negative, counts backwards from last character. |
end |
integer vector giving position of last word to extract. Defaults to first word. If negative, counts backwards from last character. |
sep |
separator between words. Defaults to single space. |
character vector of words from start to end
(inclusive). Will be length of longest input argument.
sentences <- c("Jane saw a cat", "Jane sat down")
word(sentences, 1)
word(sentences, 2)
word(sentences, -1)
word(sentences, 2, -1)
# Also vectorised over start and end
word(sentences[1], 1:3, -1)
word(sentences[1], 1, 1:4)
# Can define words by other separators
str <- 'abc.def..123.4568.999'
word(str, 1, sep = fixed('..'))
word(str, 2, sep = fixed('..'))Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.