Do Loop for data manulplation

[BrahmanandaRao]

Hi 

Here I am trying to data manipulate using  do loop  

data dsn;
 do Sex= 1 to nobs ;
 length sex  $ 12 ;
 set sashelp.class nobs=nobs;
 if Sex='F' then Sex='Female';
 output;
 end;
 proc print;
 run;

[Astounding]

You first need to decide whether sex should be numeric or character. Even in these permissive times, it can't be both.

[Tom]

I don't understand what the purpose of the DO loop is in that program.  If you want to recode the value used for females just do:

data WANT;
  length sex  $12 ;
  set sashelp.class ;
  if Sex='F' then Sex='Female';
run;

[BrahmanandaRao]

I Know if condition so that I just trying do loops I took small dataset suppose if huge data then

[Tom]

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@BrahmanandaRao wrote:
I Know if condition so that I just trying do loops I took small dataset suppose if huge data then

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The number of observations does not impact the code.

[Kurt_Bremser]

Why do you think you need a DO loop?

[Cynthia_sas]

Hi:

  If all you want to do is change the display of the variable for PROC PRINT, you can use a user-defined format for that. See #1 below. If you want to create a new character variable, then you can also do that with a user-defined format and the PUT function, no DO Loop or IF statement needed. See #2 example below.

Cynthia