Split string in R by \ character

Question

I have column sr$classf in sr dataframe with string like hierarchy servicegroup\service\servicerequest\. I want to split string with strsplit() by \ character and put different parts of splitted string in additional columns. For example I create sr.c7$service column ans put first part before \

 sr$service <- as.character(lapply(strsplit(as.character(sr$classf), split="\"), "[", 1))

But R comment out all code following split="\". What should I do to use \ as a split parameter?

Solution:

 sr$service <- as.character(lapply(strsplit(as.character(sr$classf), split="\\\\"), "[", 1))

Avinash, thank you! Can you explain the logic? Maybe you can provide link on docs? — Mikhail Fedorenko, Sep 03 '15 at 08:52
In my case solution code looks like following sr$service <- as.character(lapply(strsplit(as.character(sr$classf), split="\\\\"), "[", 1)) — Mikhail Fedorenko, Sep 03 '15 at 08:53

score 1 · Answer 1 · answered Sep 03 '15 at 08:54

1

Use four backslashes to match a single backslash character.

strsplit("foo\\bar", "\\\\")[[1]]
#[1] "foo" "bar"

answered Sep 03 '15 at 08:54

Avinash Raj

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Split string in R by \ character

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