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

3 Answers   TRE, Verinon Technology Solutions,

---

how does sas handle missing values in: assignment statements, functions, a merge, an update, sort order, formats, procs? : Sas programming

0 Answers  

---

what is lifetest

1 Answers   Cognizant,

---

i have a null dataset with 20 variables. i want to upload the variables which contain name like a or k or anything in another dataset.how can we create the dataset?

3 Answers   L&T,

---

We want to merge file A and B. File A has variable age, file B provide birthdate. How to merge the data according to age in file B

3 Answers  

---

what is the basic structure sas administrator? : Sas-administrator

0 Answers  

---

List out some key concept of SAS

0 Answers  

---

In SAS explain which statement does not perform automatic conversions in comparisons?

0 Answers  

---

How would you delete observations with duplicate keys?

13 Answers   Accenture,

---

Below is the table. Required to be output should be the highest number of each student_id. Example. Student_id Subject Marks 1 Hindi 86 2 Hindi 70 3 English 80 . Calculate sum and average marks for each group of student_id Example. Student_id Subject Marks Total Marks Average 1 English 40 181 60.33333 2 English 67 196 65.33333 3 English 80 160 53.33333 PLEASE PROVIDE THE CODE OF ABOVE PROBLEMS

1 Answers   Accenture, HSBC,

---

if a variable contain dates like "2015/01"---"2015/12" (yymm) ,How to add day to those dates,if them month is jan then 31 if the month is feb then 28 so on ...

0 Answers   Accenture,

---

· What are some good SAS programming practices for processing very large data sets?

6 Answers   Quintiles,

---