You can use the EXECUTE function to achieve this goal. An example is shown below: pro dj_forum_242017 compile_opt idl2 for ii = 1L, 5 do begin command = "untitled_" + STRTRIM(ii, 2) + " = strarr(" + STRTRIM(ii,2) + ")" output = EXECUTE(command) endfor help end I hope this helps. David Starbuck -Harris
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