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SAS_Institute

A00-280 · Question #76

Given two data sets with the following variables: Data Set HR Variables: SUBJID VISIT HRRATE Data Set DISP Variables: SUBJID VISIT STATUS 50 data hrates ; 51 merge hr disp ; 52 by subjid ; 53 run…

The correct answer is C. There are multiple observations with the same value for SUBJID in both data sets. See the full explanation below for the reasoning.

Question

Given two data sets with the following variables: Data Set HR Variables:
  • SUBJID
  • VISIT
  • HRRATE
Data Set DISP Variables:
  • SUBJID
  • VISIT
  • STATUS
50 data hrates ; 51 merge hr disp ; 52 by subjid ; 53 run ; NOTE: MERGE statement has more than one data set with repeats of BY values. NOTE: There were 13 observations read from the data set WORK.HR. NOTE: There were 6 observations read from the data set WORK.DISP. NOTE: The data set WORK.HRATES has 13 observations and 5 variables. Why is the blue note showing in the log?

Options

  • AThe variable VISIT occurs in both data sets but is not included in the BY statement.
  • BThere are no observations with matching values for SUBJID in either data set.
  • CThere are multiple observations with the same value for SUBJID in both data sets.
  • DOne of the two data sets has multiple observations with the same value for SUBJID.

How the community answered

(29 responses)
  • A
    3% (1)
  • B
    10% (3)
  • C
    83% (24)
  • D
    3% (1)

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