what are the differences between proc report and proc tabulate?

3 Answers  

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What can you learn from the SAS log when debugging?

0 Answers   Quintiles,

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Where do you use proc means over proc freq?

0 Answers  

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Write SAS codes to compare two datasets. Suppose the allowable difference is 0.1.

2 Answers  

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What is the pound sign used for in the data_null_ ?

1 Answers  

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How would you determine the number of missing or nonmissing values in computations?

0 Answers  

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How does proc sql work?

0 Answers  

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what is the diff. b/w proc means and proc summary?

12 Answers   CitiGroup,

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

3 Answers   TRE, Verinon Technology Solutions,

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calculate the sum of value using only DATA STEP. data count_; input year name $ value; cards; 2006 xxx 10 2007 yyy 12 2006 xxx 20 2008 yyy 15 2007 xxx 15 ; out put should be like this year name T_value ----------------------- 2006 xxx 30 2007 xxx 15 2007 yyy 12 2008 xxx 15

6 Answers  

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What is the size of PDV?

2 Answers   L&T,

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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.

1 Answers  

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