[amibroker] More Mysteries with TimeFrames

["Ken Close" <ken45140@xxxxxxxxx>]

Here is one I cannot figure out.

 

I write

 

Filter = 1; Buy =0;

Bars = Cum(1);

AddColumn(Bars,"Bars",1.0);

 

I set the date to the first date of the data, and I get

Bars

1

2

3

4

 

Now, I set this

 

Filter = 1; Buy =0;

Bars = Cum(1);

 

TimeFrameSet(inMonthly);

BarsM = Cum(1);

TimeFrameRestore;

BarsM = TimeFrameExpand(BarsM,inMonthly);

 

AddColumn(Bars,"Bars",1.0);

AddColumn(BarsM,"BarsM",1.0);

 

and I get

 

Bars   BarsM

1        4763

2        4763

3        4763

 

I expected

Bars   BarsM

1        0   

2        0

etc

22        1

 

What is going on?  What happened inside the TimeFrameSet section?  Why did I get this result?

I want to operate on Monthly stats and bars yet need to count the number of months since a specified start date and I cannot do it.

Help please.

 

Ken

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