Complete SAS Programming Guide - Learn SAS and Become a Data Ninja - Index Options
Interactive Video
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Information Technology (IT), Architecture
•
University
•
Practice Problem
•
Hard
Wayground Content
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The video tutorial discusses creating an index and explores two options: 'no miss' and 'unique'. The 'no miss' option helps save space by not maintaining missing values in the index, which is useful when the index variable has many missing values. The 'unique' option requires key variables to be unique, preventing duplicate values, which is important when updating observations. Examples are provided to illustrate the use of these options.
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2 questions
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1.
OPEN ENDED QUESTION
3 mins • 1 pt
What happens if you try to add a duplicate value when using the 'unique' option?
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2.
OPEN ENDED QUESTION
3 mins • 1 pt
Explain the importance of maintaining unique values in a composite index.
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