What is LAG function?How is it used? can any one explain

3 Answers   TRE, Verinon Technology Solutions,

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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.

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Does anybody has lastest SAS certification dumps,if anybody has please mail me at akshara_SAS@ymail.com Thanks Akshara

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Why double trailing @@ is used in input statement?

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What are the scrubbing procedures in sas?

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"What is the difference between proc sort nodup and proc sort nodupkey?"

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what does the run statement do? : Sas programming

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here is a string like chq.2312244%4452- from that i want only special characters in a column. dont use compress. bcoz i have 1.2 billion of records.i want another process to find the values instant from the data.

2 Answers   Cap Gemini, L&T,

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I use NOCUM/NOPERCENT option in the tables statement like this Proc freq data = deepak; tables x y /nocum nopercent; run; Here I get nopercent and nocum in the output only for variables x and y. How do i do it for all variables? Deepak

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what is the purpose of _error_? : Sas programming

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How do you add a number to a macro variable?

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Describe the ways in which you can create macro variables?

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