for( int incomeInd = 0; incomeInd < incomeXL.length; incomeInd++ ) {
double income = incomeXL[incomeInd];
ruleBlock.setVariable("sel", income);
// Evaluate fuzzy system
functionBlock.evaluate();
// get output
double credLimMul = ruleBlock.getVariable("credLimMul").getLatestDefuzzifiedValue();
if( debug ) {
for( Variable var : ruleBlock.getFunctionBlock().variables() )