what are methods to identify duplicate observations?
Answer Posted / hari prasad reddy
3 methods.
1.using proc sort
2.proc sql distinct
3.set first.var and last.var
| Is This Answer Correct ? | 10 Yes | 1 No |
Post New Answer View All Answers
how do you test for missing values? : Sas programming
what is null hypothesis? why do you consider that?
if the Id has more then two transcatiion then show the first observation, IF Id has only two observation then It show both the observation
how can you put a "trace" in your program? : Sas programming
What are the different operating system platforms in which we can use sas? : sas-grid-administration
What are the applications primarily used by business analyst? : Sas-bi
what are the benefits of data integration? : Sas-di
how we can create a FLAG datasets? Ex:-ID age_group no_persons 1 to 10 10 to 20 3 11 to 20 21 to 30 7 21 to 3o 31 to 40 5
What is the differnce between SDTM 3.1.2 to 3.1.1 version
I am preparing SAS Certified Advanced Programmer for SAS 9 in 2014. If anybody has the latest dumps for this exam, please mail me at dhiman.mukherjee@gmail.com
what is the one statement to set the criteria of data that can be coded in any step? : Sas programming
Explain the special input delimiters used in sas programming.
Approximately what date is represented by the SAS date value of 730?
Difference between SAS STATA & SPSS?
How would you determine the number of missing or nonmissing values in computations?