Number of Valid Cases

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Description

Returns the number of valid (non-NA) values in a variable. This is a wrapper around univar function with length function passed in fn argument, but with missing values previously removed. However, it's not possible to cancel NA omission with this function (doing so will yield error).

Usage

1

Arguments

...

parameters to be passed to univar function

Value

a numeric value with number of valid (non-NA) vector elements