The result is stored in a binned dataset, which may overwrite the first input dataset (if it is indeed a dataset) if the OVER keyword is added to the command line.
Errors and quality in the input objects are taken into account (see error_functions). If the input has no errors but you want to add some enter the keyword ERRORS on the command lines. This will cause errors to be prompted for. If errors are prompted for but no errors are required then respond with a '!'.