[amibroker] question on formula for plot trade price

[Noah Bender <knowabender@xxxxxxxxx>]

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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