Check for non trailing or leading NA's in a vector

StackOverflow https://stackoverflow.com/questions/22781270

  •  25-06-2023
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Question

I would like to find if a vector has NAs that are non leading or trailing.

For example, c(NA, NA,1,8,6, NA,NA, 5, 11, 16,15, 18, NA, NA) should return TRUE, and c(NA, NA,1,8,6, 7,8, 5, 11, 16,15, 18, NA, NA) should return FALSE.

Does anyone know how to write this?

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Solution

length(rle(is.na(c(NA, x, NA)))$values) > 3

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