data task; input id date date9. visit; cards; 101 01jan2015 1 101 02jan2015 2 101 06jan2015 3 102 04jan2015 1 102 07jan2015 2 102 12jan2015 3 103 06jan2015 1 103 13jan2015 2 ; run; write a program to find out missing dates between visits by each subject.

1 Answers  

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name few built in sas transformation in DI studio ?

4 Answers   SAS,

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how can you code the confidence intervals?

6 Answers   Cytel, IIT, Ranbaxy,

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What is the difference between the proc sql and data step?

0 Answers  

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What is the one statement to set the criteria of data that can be coded in any step?

4 Answers  

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Can we use where and having clauses in a single SAS program. ex: proc sql;     select a,b,c from test      where state in 'KA'      and having <some condition>. Is the above program run correctly, if not why ?     

4 Answers   UHG,

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what is the need of INDEX in datasets?

6 Answers   CitiGroup,

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What is the use of stop statement?

0 Answers  

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Difference Between Scan and Substr

2 Answers  

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hi i am nipun can anybody tell me that if a clinical sas programmer write the code and after successfull execution where do they store it. how they submit tables to TL how work is assigned to programmers either both code, log, output to be submitted. can any one tell me the process

2 Answers   HSBC,

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what is the difference between calculating the 'mean' using the mean function and proc means? : Sas programming

0 Answers  

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What happens in the following code, if u type 8 instead of *? proc sql noprint; create table abc as select 8 from lib.abc; quit;

3 Answers  

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