when do we use domain can you calibrate weights from a complex survey weights hcup what is hcup data can i recalibrate weights using nis data what is the difference between a dummy and a weight how can i recalibrate a weighted nis survey why recalibrate weights with external data can nis data be used for cross validation weights from nis can weighted data from an external survey be calibrated why use dummy data in crossvalidated survey can h cup dummy data be used to calculate weight can i recalibrote weights from surveys what is the definition of dummy in hcup weighted survey can a survey be used to calculate weight why are dummy values not required in cross validation can nis data be used in cross validation how to make weights from hchup results