Which of the following methods for combining data sets is distinguished for
its use of the BY statement?
A) Interweaving
B) Match-merging
C) Concatenation
D) None of the above
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SAS and all other SAS Institute Inc. product or service names are registered trademarks or trademarks of SAS Institute Inc. in the USA and other countries. ® indicates USA registration.
Other brand and product names are trademarks of their respective companies.
This blog is not responsible for any kind of copyright violation. This blog just collects the links hosted or posted by other servers/people/search engines.The creator of this page or the ISP(s) hosting any content on this site take no responsibility for the way you use the information provided on this site.If anybody has any copyright claim on it and doesn’t wish the information provided to be shown on our site, please do respond to this email. We shall remove them off immediately. Any inconvenience is regretted. Please do mention your exact grievance/problems with respect to certain third party links. We assure you that appropriate action will be taken off. Thank you
6 comments:
Answer: A
Reasoning: Match-merging is distinguished by the MERGE
statement and concatenation by multiple SET statements. The
interweaving method uses BY statements to choose which
observations are appropriate from each of the data sets. Though the
match-merging method also uses BY statements to focus the
observations used, it must have the MERGE statement to perform
properly.
but interleaving method must have a SET statement to use a BY statement.
its interleaving not interweaving ?? hence only option left is match merging
match merging has multiple set statements and need not be sorted before merging.
concatenating is joining of two data sets they need not have anything in common.
If interweaving is typo, then ans should be A (interleaving)
if not than correct answer is D
SASGURU can U please expang more on this question?
Because concatenation does not take either by statement or multiple set statements. Rather one-to-one reading takes multiple set statements and so, concatenation out of question. Now, both match merging and interleaving take by statement, but how is any of these methods is distinguished? Please if this message reaches U, reply at the earliest because I am soon going to write certification!1
Answer B
Because Interweaving and Concatenation requires SET statement
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