Answer / shah

Proc Lifetest is used for compare which tretment is more
efficient. Change from baseline of tretment.

Answer / madhu

proc life test is used for survival analysis.It has 2
methods. KM method,Life method.

/* This is example of age caluculate wihtout to display perfect days and years in output window */ data age; retain dob "12jun2003"d now "24may2011"d; age1=now-dob; age=(now-dob)/365.25; years=int(age); days1=round((age-years)*365.25); months=month(now)-1; if days1 gt 30 and months in(12,10,8,6,4,2)then do; month1=days1/30.4375; month=int(days1/30.4375); if day(now)=1 then days=1; else days=round((month1-month)*30.4375)+1; drop days1 month1 month; end; else if days1 gt 30 and months in (1,3,5,7,9,11)then do; month1=days1/30.4375; month=int(days1/30.4375); if day(now)=1 then days=1; else days=round((month1-month) *30.4375); drop days1 month1 month; end; drop age age1; proc print data=age; format dob now date.; run;

1 Answers   Emerio,

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Describe crosslist option in tables statement?

0 Answers  

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what are the different ways of merging two datasets.name atleast 4.

2 Answers  

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Explain translate function?

0 Answers  

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How do you delete duplicate observations in sas?

0 Answers  

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explain about sas business intelligence? : Sas-bi

0 Answers  

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In sas, what are the areas that you are most interested in? : sas-grid-administration

0 Answers  

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There are 200 observations in a dataset, i want to pull out the observation no's 100, 150,180,190 by using Proc SQL? How you can get it?

5 Answers  

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What is your weekness? I am confuse what to say about this question. so can u give some answer which can be yur strenght.

1 Answers   Cipla,

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What is the use of the %include statement?

0 Answers  

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What procedure you used to calculate p-value?

2 Answers   Accenture, Quintiles,

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what are some differences between proc summary and proc means? : Sas programming

0 Answers  

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