Define validation rules for data
validator(..., .file, .data)
A comma-separated list of validating expressions
(optional) A character vector of file locations (see also the
section on file parsing in the
An object of class
Each validating expression should evaluate to a
logical. Allowed syntax of
the expression is described in
v <- validator( height>0 ,weight>0 ,height < 1.5*mean(height) ) cf <- confront(women, v) summary(cf)
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