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When you create longer timeframe indicators, you use either "expandfirst" or
"expand last" parameters.
"Expandfirst" will "look forward" to the end of the period. For example if
you are doing a 5 period expansion, then if the 1st regular period is
higher, the entire expanded 5 period bar will be high ... which can changes
in the next 4 bars.
----- Original Message -----
From: "firehorse888uk" <firehorse888uk@xxxxxxxxxxx>
To: <amibroker@xxxxxxxxxxxxxxx>
Sent: Monday, February 06, 2006 8:55 AM
Subject: [amibroker] Different daily EMA values when viewed from lower
timeframes?
> Hi,
>
> Could someone explain why when viewed from a lower timeframe, why my
> daily ema values keep changing?
>
> I'm using forexite minute data.
>
> At the end of friday 21:00
> Daily EMA(C,2) = 1.20836
> When I change the intervals I'm viewing it at it changes.
> 4hr - 1.20224
> 1hr - 1.20178
> 15min - 1.2018
> 5min - 1.20181
> 1min - 1.2018
>
> By using the timeframeset and restore to get the daily ema(c,2) value,
> I would have expected it to remain constant. I've attached the code
> I'm using.
>
> Has anyone got a better understanding to explain?
>
> Thanks
> Alan
>
> P = ParamField("Price field",-1);
> EMA1Per = Param("EMA1 Period", 02, 2, 1000, 1, 10 );
> EMA2Per = Param("EMA2 Period", 28, 2, 1000, 1, 10 );
> EMA1Col = ParamColor( "EMA1 Colour", colorRed);
> EMA2Col = ParamColor( "EMA2 Colour", colorBlue);
>
> Timeframe = inDaily;
>
> TimeFrameSet(Timeframe );
> EMA_Line1 = EMA( P, EMA1Per );
> EMA_Line2 = EMA( P, EMA2Per );
> TimeFrameRestore();
>
> EMALine1= TimeFrameExpand(EMA_Line1, Timeframe );
> EMALine2= TimeFrameExpand(EMA_Line2, Timeframe );
>
> AddColumn(EMALine1,"EMA1",1.4);
> AddColumn(EMALine2,"EMA2",1.4);
>
> Plot( EMALine1 + 0.0000, "EMA1", EMA1Col,styleNoRescale);
> Plot( EMALine2 + 0.0000, "EMA2", EMA2Col,styleNoRescale);
>
> Filter=1;
>
>
>
>
>
>
> Please note that this group is for discussion between users only.
>
> To get support from AmiBroker please send an e-mail directly to
> SUPPORT {at} amibroker.com
>
> For other support material please check also:
> http://www.amibroker.com/support.html
>
>
> Yahoo! Groups Links
>
>
>
>
>
>
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