AFL Query

TimeFrameGetPrice( "O", inWeekly, -1 )

This function will get the opening price of the last week. But how does Amibroker identify a change of week ? If it is by the number of bars, then trading holidays will create errors.
My question is does this function take care of trading holidays ?

Please help. Thanks.

It takes previous 5 bars.

Well, I guess not because at times I have seen it finishing off a week with 4 bars .