Find Missing Values in R (Example) | How to Identify the Position of NA | is.na & which Function

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# Example data
expl_vec1 <- c(4, 8, 12, NA, 99, - 20, NA)
expl_vec1

# Return logical vector indicating NAs

# Return positions of NAs
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does the is.na() function works as is.null() function? I am bit confused. what's difference between these 2 functions?

altareq
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Hi, how can we Omit NULL values from non-numerical data fields

peaceok
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How to assess the missing value from each variable?

asifkhaliq