This change does not affect the test or its result, but makes it
easier to understand.
end data.
do if B0 = -1 AND B1 = -1 AND B2 = -1.
end data.
do if B0 = -1 AND B1 = -1 AND B2 = -1.
end if.
do if B0 = 0 AND B1 = 0 AND B2 = 1.
end if.
do if B0 = 0 AND B1 = 0 AND B2 = 1.
end if.
do if B0 = 0 AND B1 = 1 AND B2 = 0.
end if.
do if B0 = 0 AND B1 = 1 AND B2 = 0.
end if.
do if B0 = 1 AND B1 = 0 AND B2 = 0.
end if.
do if B0 = 1 AND B1 = 0 AND B2 = 0.
-compute Bgrp = 3.
-end if.
-
-
-do if B0 = 0 AND B1 = 1 AND B2 = 0.
-compute Bgrp = 4.