explain the difference between alternate key, business key, foreign key, generated key, primary key, retained key and surrogate key ? : Sas-di

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what is SAS OPTIMIZATION?

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What are the scrubbing procedures in sas?

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Mention what is the difference between nodupkey and nodup options?

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what is difference in window SAS & Unix SAS.....how do define working environment in both???

1 Answers   JPMorgan Chase,

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name few built in sas transformation in DI studio ?

4 Answers   SAS,

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sas macros

12 Answers   TCS,

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What is _n_?

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1.What is the difference between _NULL_ , _ALL_, and _N_? 2.What are the uses of _NULL_ using in Data Steps? Can we _NULL_ in Proc Steps also? 3.How do call the macro variable in Data Steps? 4.How to construct Pivot tables in Excel Using SAS?

3 Answers  

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Dear all, proc means data=dsn noprint completetypes; class trtmntgroup /preloadfmt; output out=tot n=n; format trtmntgroup trtf. ; by vstgrp descending severity; run; This is the code I used for AE table. I got the values without giving the variable ‘trtmntgroup(numeric)’ in var statement. And if I give the var statement for that variable i’m getting the same values.How is that possible? What is the difference between class and var statement? Could any one explain me how does proc means work at the back end. And what is the difference between _freq_ value and N value in proc means. Thanks and regards, Rajesh.

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How to limit decimal places for the variable using proc means?

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Can you explain the process of calendar?

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