public String toFormulaString(String[] operands) {if(space.isSet(_options)) {return operands[ 0 ];} else if (optiIf.isSet(_options)) {return toFormulaString() + "(" + operands[0] + ")";} else if (optiSkip.isSet(_options)) {return toFormulaString() + operands[0];   } else {return toFormulaString() + "(" + operands[0] + ")";}}