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Creating dummy variable using macro

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Occasional Contributor
Posts: 13

Creating dummy variable using macro

If I have a variable (var) such that if category= A then the value of var is 1, if category=B then value of var is 2, and if category =C then the value of var is 3 and I want to create indicator variables for these three categories of var, called var_1, var_2, and var_3 using macros, would it be correct to say

 

%macros Create_indictor (num=);

data= mydata;

if var= &num then %put var_#

run;

%mend Create_indicator;

 

%Create_indicator (num=1);

%Create_indicator (num=2);

%Create_indicator (num=3);

 

 

Super User
Posts: 19,873

Re: Creating dummy variable using macro

Let's not reinvent the wheel Smiley Happy 

 

SAS provides functionality to handle categorical variables, depending on your procedure. 

Or you can use the methods here:

http://blogs.sas.com/content/iml/2016/02/22/create-dummy-variables-in-sas.html

 

At the bottom of this page there are three other links with ways to create dummy variables

https://communities.sas.com/t5/SAS-Communities-Library/How-to-create-dummy-variables-Categorical-Var...

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