Did you used proc lifetest? when?
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Answer / shah
Proc Lifetest is used for compare which tretment is more
efficient. Change from baseline of tretment.
| Is This Answer Correct ? | 3 Yes | 1 No |
Answer / madhu
proc life test is used for survival analysis.It has 2
methods. KM method,Life method.
| Is This Answer Correct ? | 3 Yes | 4 No |
what are validation tools that are used in sas? : Sas-administrator
In the flow of DATA step processing, what is the first action in a typical DATA Step?
The below code we are using for creating more than one macro variables in proc sql using into clause. How we can use same code to create macro variables vara, varb, varc instead of var1, var2, var3.? proc sql noprint; select count(distinct(patient)) into :var1 - :var3 from dataset1 group by trtreg1c ; quit;
What is the general format of function in sas? : sas-grid-administration
data data1; input dt account; format dt date9.; cards; 1745 1230 1756 1120 1788 1130 1767 1240 ; data data2; input startdt enddt total; format startdt date9. enddt date9.; cards; 1657 1834 12300 1557 1758 16800 1789 1789 12300 1788 1345 12383 1899 1899 13250 ; proc sql; create table data3 as select * from data1 as x left join data2 as y on x.dt>=y.startdt and x.dt<=y.enddt; quit; Here, we are getting cartision product. But,I want left join report consisting of this program. It should not get duplicate values. you can modify the program also.
I need help in merging two different datasets. I am merging by date and I want to propagate observations from one dataset to the corresponding dates. One dataset has a unique date for each day of the month, while the other dataset has same date for different patient visits. For example I want to spread an observation on the 31DEC2008 from one dataset to several observations with the same date on a second dataset for all the patients who visited on that date. I have tried to merge the two and the result is not what I wanted. Instead I get a dataset whereby all the dates have missing values where observations from the first datset should have spread.
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