[amibroker] Loop thru past N bars

["stevenpang21" <stevenpang21@xxxxxxxxx>]

Hi,
I am trying to write a for loop to loop thru the past N bars for each
backtesting cycle.

I did something like this:

lastbar = LastValue(BarIndex());

for (n=lastbar; n>=lastbar-20; n--)
{
 check close[n], etc.
}

But it seems that this loop is only run once during the auto analysis
starting at the very last bar of the chart. I want it to start from
the 1st bar in the chart.

Thanks,
Steven.








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