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Checks an individual (survey) variable for common errors.
check_ind(ind_var)
the individual (survey) variable you want to check
If no errors are detected the function returns silently. Any errors will stop the function or script to be investigated.
Checks an individual (survey) variable for the following common errors:
That each row sums to 1 (i.e. correctly converted to a dummy variable)
# NOT RUN { ## check_ind(ind_var) # }
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