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ExRem is great for charting and for use on intermediary variables.
But, it can interfere with the backtester and Tomasz recommends not
using it for Buy/Sell/Short/Cover arrays for that reason.
http://finance.groups.yahoo.com/group/amibroker/message/125451
As an alternative, you can use the Cross function rather than the
relational operators '<' and '>'.
BuyCond1 = Cross(EMA( Close , 15 ), EMA( Close , 100 ));
That way you don't end up with the redundant signals in the first
place.
Mike
--- In amibroker@xxxxxxxxxxxxxxx, "wavemechanic" <timesarrow@xxx>
wrote:
>
> Use exrem() to get rid of unwanted signals. You can also use
plotshapes() to plot buy/sell arrows.
>
> Bill
> ----- Original Message -----
> From: Noah Bender
> To: amibroker@xxxxxxxxxxxxxxx
> Sent: February 22, 2009 12:10 AM
> Subject: [amibroker] question on formula for plot trade price
>
>
> hello,
>
> I am new to amibroker and am trying to figure this one out.
>
> I have a simple formula
> BuyCond1= EMA( Close , 15 ) > EMA( Close , 100 );
>
>
> Buy = Buycond1 ;
>
> Sell = EMA (Close,15)<EMA(Close,100);
>
> I am trying to plot the trade price on the chart. so far I have
this:
>
>
> Plot(C,"Price", colorBlack, styleLine );
> Plot(EMA(C,15),"ema", colorRed );
>
>
> for( i = 0; i < BarCount; i++ )
> {
> if( Buy[i] ) PlotText( "Buy\n@" + C[ i ], i, L[ i ], colorGreen );
> if( Sell[i] ) PlotText( "Sell\n@" + C[ i ], i, H[ i ], colorRed,
colorYellow );
>
> WHen I apply indicator it plots the price at every point on the
chart and not just when the moving averages cross. Does anyone know
why? and can show me the formula???
>
> It would be much appreciated.
>
> thanks
>
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