Answer Posted / mallikarjuna raju

This is an automatic variable of PDV that returns the no of
observations that it has iterated.There are such variables
like _Error_,end=,in=,first.by-variable,last.by-variable,..etc
All these variables will not be displayed in the target output.
Ex:
Data new;
set <existed>;
if _n_>=2 and <=6 then output;

what is the Population you used in your project, is it ITT or PP?

2680

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how we can create a FLAG datasets? Ex:-ID age_group no_persons 1 to 10 10 to 20 3 11 to 20 21 to 30 7 21 to 3o 31 to 40 5

2059

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what is the difference between infile and input? : Sas-administrator

1062

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how will you location sas platform applications available from web browser? : Sas-bi

1012

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explain the main difference between the nodup and nodupkey options? : Sas-administrator

1106

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Can you suggest us materials for sdtm mapping?

4387

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What does PROC print, and PROC contents do?

1169

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How you are maintaining sas programmes in your company...any specific version control software you are using? If so, tell me the name?

2056

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What function CATX syntax does?

1165

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How many data types are there in SAS?

1005

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Differentiate between proc means and proc summary.

998

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How would you define the end of a macro?

1040

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how do you debug and test your sas programs? : Sas programming

1069

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what is the difference between floor and ceil functions in sas? : Sas-administrator

1188

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What are the parameters of scan function?

1107

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