ipumspy.api.UsaExtract.__init__¶ UsaExtract.__init__(samples, variables, description='My IPUMS USA extract', data_format='fixed_width', **kwargs)[source]¶ Defining an IPUMS USA extract. Parameters samples (List[str]) – list of IPUMS USA sample IDs variables (List[str]) – list of IPUMS USA variable names description (str) – short description of your extract data_format (str) – fixed_width and csv supported