The key to ensuring accurate data is having clean data. This book develops and describes data cleaning programs and macros that can be used as is, or modified for special data cleaning tasks. Topics presented include validation checks on character data, numeric data, missing values, and date values; searching for duplicate records; working with multiple files; double entry and verification using the COMPARE procedure; and SQL solutions and using validation data sets.
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The key to ensuring accurate data is having clean data. This book develops and describes data cleaning programs and macros that can be used as is, or modified for special data cleaning tasks. Topics presented include validation checks on character data, numeric data, missing values, and date values; searching for duplicate records; working with multiple files; double entry and verification using the COMPARE procedure; and SQL solutions and using validation data sets.
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Seller's Description:
Very good. Connecting readers with great books since 1972! Used books may not include companion materials, and may have some shelf wear or limited writing. We ship orders daily and Customer Service is our top priority!
Choose your shipping method in Checkout. Costs may vary based on destination.
Seller's Description:
Very good. Connecting readers with great books since 1972! Used books may not include companion materials, and may have some shelf wear or limited writing. We ship orders daily and Customer Service is our top priority!
Choose your shipping method in Checkout. Costs may vary based on destination.
Seller's Description:
Very good. Connecting readers with great books since 1972! Used books may not include companion materials, and may have some shelf wear or limited writing. We ship orders daily and Customer Service is our top priority!
Choose your shipping method in Checkout. Costs may vary based on destination.
Seller's Description:
Good. Good condition. A copy that has been read but remains intact. May contain markings such as bookplates, stamps, limited notes and highlighting, or a few light stains.
