What are the differences between proc means and proc summary?
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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.
Name and describe three SAS functions that you have used, if any?
What would be the value of month at the end of data step execution and how many observations would be there?
What is the maximum length of the macro variable? : sas-macro
What is the use of stop statement?
How do you write a test plan?
What is the general format of function in sas? : sas-grid-administration
Do you need to know if there are any missing values?
How to do user inputs and command line arguments in SAS? D&B
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 ?
What are the default statistics that proc means produce?
what is sas? is a package or tool? give me introduction about sas?