Answer / ak

%macro Mtest (mvar);
here its required parameter.
----------------------------------------------

%macro Mtest(mvar1=abc);
.....
sas statements using macro variable mvar1
here mvar1 can be optional while calling macro Mtest
if parameter value is not send then it takes default value
as abc
.....
%mend;

Answer / shiri

using keyword and positional parameters.

Answer / sheetal

In macro definition you can create required parameters and
using %let or call symput you can create optional
parameters in sas macro

Answer / rajeev

using %let statement

Answer / ravid

By using macros we can crate optional or required parameters

Do you need to know if there are any missing values?

0 Answers  

How many ways to overcome a missing values???

0 Answers   HSBC,

Identify statements whose placement in the DATA step is critical.

6 Answers   Accenture, Labasol,

what other SAS features do you use for error trapping and data validation?

3 Answers   Quintiles,

i want to upload titles and footnotes to excel file?how it is possible?

1 Answers  

Baseline definition in your study

3 Answers   Accenture, Quintiles,

What is the basic structure of the SAS base program?

0 Answers  

How to write duplicate records into a separate dataset using sort?

4 Answers   HSBC,

What is criteria for adverse events and treatment-emergent adverse events?

2 Answers   Accenture,

Can you suggest us materials for sdtm mapping?

0 Answers   TCS,

What are the default statistics for means procedure?

0 Answers  

whenever we using the merging through data set merging ,we can get note in log like this "MERGE STATEMENT HAS MORE THAN ONE ONE DATASET BY REPEATED BY VAIABLES" but the output has come in good manner,whenever in in sql(full join) we can get cartion product.so How do overcome this problem in sql?

1 Answers   Accenture,