I have a huge string in R where I want to remove single characters from. So for example, the string might be
blabla a test this that b á
And the result should be
blabla test this that
How do I do this in R?
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$\begingroup$ please accept an answer if it worked for you! $\endgroup$– StereoFeb 27, 2017 at 9:05
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1 Answer
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This splits the string and filters the substrings by length, no regex:
string <- "blabla a test this that b á"
paste(Filter(function(x) nchar(x) > 1,
unlist(strsplit(string, " "))),
collapse=" ")
# [1] "blabla test this that"
(does not work with multiple space characters)
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1$\begingroup$ You might get it to work with multiple space characters by using strsplit(string, "\\W+", perl=TRUE). That should enable perl regex matching and then split based on one or more whitespace characters. $\endgroup$– DuncanFeb 16, 2017 at 1:40
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$\begingroup$ If you want to split on multiple spaces, you can also just use
'\\s+'as split. $\endgroup$– JaapMar 4, 2017 at 10:30