I have this dataset with over 50 variables all starting with the same prefix (cares_sf_1, cares_sf_2, cares_sf_3, cares_sf_4 ,and so on up to 50). I am trying to do create an array that contains all these variables without having to type each one of them out. Is there a way to do this? I thought 'cares_sf_1-cares_sf_7" might work, but apparently it doesn't appear to be the right syntax and I can't find a solution through google searches.
Here is what I've currently done that isn't working:
DATA CARES; SET RedcapDB; ARRAY acares_sf_{7} cares_sf_1-cares_sf_7; DO i = 1 to 7; acares_sf_[i] = cares_sf_[i] - 1; END; RUN;
Error message:
7120 DATA CARES; SET RedcapDB; 7121 ARRAY acares_sf_{7} cares_sf_1-cares_sf_7; 7122 DO i = 1 to 7; 7123 acares_sf_[i] = cares_sf_[i] - 1; ERROR: Undeclared array referenced: cares_sf_. ERROR: Variable cares_sf_ has not been declared as an array. 7124 END; 7125 RUN;
Any help is appreciated. Thank you!
You need to declare two arrays acares and cares, OR you meant acares but typed cares.
Your list approach should work just fine if the array statement is correct.
You're looking for something called variable lists.
Another option is the colon short cut, which includes everything with that prefix:
array myArray(*) prefix: ;
Assuming you fixed the array name reference, you will also need to change the DO loop: do i=2 to 7;
There is no 0th element to copy into the 1st element.
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