n_missing | R Documentation |
Returns the number of missings in a variable or dataset. If missings are an explicit level in a factor variable, this function defaults to reporting them anyway.
n_missing(x, exclude = NA)
x |
variable |
exclude |
only needed for factors. defaults to NA (count level=missing as missing), setting to 0 allows you to count level=missing as nonmissing |
data(beavers)
beaver1$activ[1:10] = NA
n_missing(beaver1$activ)
beaver1$activ = factor(beaver1$activ, exclude = NULL)
sum(is.na(beaver1$activ))
n_missing(beaver1$activ)
n_missing(beaver1$activ, exclude = NULL)
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