someone can help me to generate a categorical variable in SAS?

I have a dataset like this

I don't know how obtain a one categorical variable that concat the names of dummy variables where is reported the integer value 1.

The result that i whish to obtein is like this:

thank you !

CodePudding user response：

• VNAME() to get the variable name
• ARRAY for dealing with multiple variables
• CATX() for separators in concatenated variables

data want;
set have;

length type $200;

array _k_list(*) K: ; *list of variables to scan for 1s;

do i=1 to dim(_k_list);

if _k_list(i) = 1 then
      type = catx("-", type, vname(_k_list(i)));
end;

run;