Extract a string of words between two specific words in R

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I have the following string : "PRODUCT colgate good but not goodOKAY"

I want to extract all the words between PRODUCT and OKAY


This can be done with sub:

s <- "PRODUCT colgate good but not goodOKAY"
sub(".*PRODUCT *(.*?) *OKAY.*", "\\1", s)

giving:

[1] "colgate good but not good"

No packages are needed.

Here is a visualization of the regular expression:

.*PRODUCT *(.*?) *OKAY.*

Debuggex Demo

Extracting a string between other two strings in R, There is no actual correct answer in the Extract a string of words between two specific words in R, I have to re-open this question. If this post  Extract a string between patterns/delimiters in R Extracting specific columns from a data frame. 697. Extract text between two words from all files in a


x = "PRODUCT colgate good but not goodOKAY"
library(stringr)
str_extract(string = x, pattern = perl("(?<=PRODUCT).*(?=OKAY)"))

(?<=PRODUCT) -- look behind the match for PRODUCT

.* match everything except new lines.

(?=OKAY) -- look ahead to match OKAY.

I should add you don't need the stringr package for this, the base functions sub and gsub work fine. I use stringr for it's consistency of syntax: whether I'm extracting, replacing, detecting etc. the function names are predictable and understandable, and the arguments are in a consistent order. I use stringr because it saves me from needing the documentation every time.

How to Extract a String Between 2 Characters in R and SAS, How do I extract a string between two characters in R? str_c: Join multiple strings into a single string. str_conv: Specify the encoding of a string. str_count: Count the number of matches in a string. str_detect: Detect the presence or absence of a pattern in a string. str_dup: Duplicate and concatenate strings within a character vector. str_extract: Extract matching patterns from a string.


You can use gsub:

vec <- "PRODUCT colgate good but not goodOKAY"

gsub(".*PRODUCT\\s*|OKAY.*", "", vec)
# [1] "colgate good but not good"

How to extract string between two different characters in Excel?, the initial position and final position as found in Steps 1-2. Arguments string. Input vector. Either a character vector, or something coercible to one. pattern. Pattern to look for. The default interpretation is a regular expression, as described in stringi::stringi-search-regex.


You could use the rm_between function from the qdapRegex package. It takes a string and a left and right boundary as follows:

x <- "PRODUCT colgate good but not goodOKAY"

library(qdapRegex)
rm_between(x, "PRODUCT", "OKAY", extract=TRUE)

## [[1]]
## [1] "colgate good but not good"

R gsub Function Examples -- EndMemo, How do I extract part of a string in R? string: Input vector. Either a character vector, or something coercible to one. pattern: Pattern to look for. The default interpretation is a regular expression, as described in stringi::stringi-search-regex.


You could use the package unglue :

library(unglue)
x <- "PRODUCT colgate good but not goodOKAY"
unglue_vec(x, "PRODUCT {out}OKAY")
#> [1] "colgate good but not good"

Extract words between symbols in R - tools, How do I extract text from two characters in Excel? How do I extract specific rows from a CSV and format the data in R? 0. extracting a subset of a string. 1. Extract a substring between two words from a string. 12


Extract matching patterns from a string, () function replaces all matches of a string, if the parameter is a string vector, returns a string vector of the same length and with the same attributes (after possible coercion to character). Elements of string vectors which are not substituted will be returned unchanged (including any declared encoding) 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


Extract word between two known words - Build, Extract words between symbols in R @Aditya_Sharma, wouldn't that require the strings in the each row to contain the exact string '.,' as a delimiter? Two backslashes are used in conjunction with the period in accordance with R syntax. Method #1 : Using split () Using split function, we can split the string into a list of words and is most generic and recommended method if one wished to accomplish this particular task. But drawback is that it fails in the cases in string contains punctuation marks.


Simple Tutorial on Regular Expressions and String Manipulations in R, Source: R/extract.r. str_extract.Rd. Vectorised over string and pattern . str_extract(​string, pattern) str_extract_all(string, pattern, simplify = FALSE) Match character​, word, line and sentence boundaries with boundary() . An empty pattern, "", is  Hi all, I'm new to coding and scripting, but I'm trying to create a flow based on a variable string. Essentially emails are sent to a shared mailbox with a subject like: "Boox export for file Sierra Leone Mission AUGUST 9" It is system generated so it is always the same, except that the mis