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Indicates which elements are missing: methods for "lcens," "mcens," and "qw" data. From smwrQW package.
# S3 method for lcens is.na(x)# S3 method for mcens is.na(x)# S3 method for qw is.na(x)
# S3 method for mcens is.na(x)
# S3 method for qw is.na(x)
the object to be tested.
A logical vector of the same length as its argument x, containing TRUE for those elements marked NA and FALSE otherwise.
x
# NOT RUN { is.na(as.lcens(c(1,3, NA), 2)) # }
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