How to change reference foreign based on the date at that point in time?

AFL Programming
1 
Month1 = NumToStr(Month(),1.0);
Year1 = NumToStr(Year(),1.0);

//Symbol2 = IIf(DateNum()>1171131 && DateNum()<1180101,

if(MONTH1=="10" && Year1=="2,018")

{

Symbol2= StrFormat("Apple");

}

if(MONTH1=="8" && Year1=="2,018")

{

Symbol2= StrFormat("IBM");

}

Here if the selected month by me using the cursor is august 2018 , my reference symbol is IBM whereas if the Selected month by me using the cursor is Oct 2018, my reference symbol is Apple , can i write some code to do backtesting that when the month is October 2018 , it uses the reference symbol as Apple and when the Month is August 2018 , it uses the reference symbol as IBM

2

In AfL don't have && Operations. So need replace all && by AND Operations

3

Not correct

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