src/test/scripts/functions/parfor/for_pred2a.dml

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a = $1+1-1;
b = $2+1-1;

sum = 0;
for( i in a:b ) 
{
   sum = sum + 1; 
}  

R = matrix(1, rows=1, cols=1);
R = R * sum;
write(R, $4);