在 R 中读取字符向量

Question

What is the best way to read this type of character vector?

"global warming" OR "carbon sink" OR biodiversity OR conservation OR "global change"

and transform it to

"global+warming"+OR+"carbon+sink"+OR+biodiversity+OR+conservation+OR+"global+change"

Answer 1

Is that what you want ?

text <- c("global warming" , "OR" , "carbon sink" , "OR" , "biodiversity" , "OR" , "conservation" , "OR" , "global change")

gsub(" " , "+" , do.call(paste , as.list(text)))

Answer 2

Assuming your string is read from a file /tmp/test you could try something like this:

st = readLines('/tmp/test')
gsub('\\s+', '+', gsub('\\\\|\\"', '', st))

Answer 3

Do you want something like:

s <- '"global warming" OR "carbon sink" OR biodiversity OR conservation OR "global change"'
cat(gsub(" ", "+", s))
#"global+warming"+OR+"carbon+sink"+OR+biodiversity+OR+conservation+OR+"global+change"

Without " .

cat(gsub('"', "", gsub(" ", "+", s)))
#global+warming+OR+carbon+sink+OR+biodiversity+OR+conservation+OR+global+change