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edited Sep 18, 2022 at 16:27

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I'm trying to determine if a string is a subset of another string. For example:

chars <- "test" value <- "es"

I want to return TRUETRUE if "value""value" appears as part of the string "chars""chars". In the following scenario, I would want to return false:

chars <- "test" value <- "et"

I'm trying to determine if a string is a subset of another string. For example:

chars <- "test" value <- "es"

I want to return TRUE if "value" appears as part of the string "chars". In the following scenario, I would want to return false:

chars <- "test" value <- "et"

I'm trying to determine if a string is a subset of another string. For example:

chars <- "test" value <- "es"

I want to return TRUE if "value" appears as part of the string "chars". In the following scenario, I would want to return false:

chars <- "test" value <- "et"

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edited Oct 17, 2018 at 6:10

Jaap

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Test if characters are in a string in R

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edited Jan 24, 2017 at 21:36

Gregor Thomas

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r regex string r r-faq

Please don't sign your posts. http://stackoverflow.com/faq#signatures

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edited May 27, 2012 at 3:59

Matt Ball

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asked Apr 12, 2012 at 17:24

mike

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Test if characters are in a string in R