[amibroker] linear regression slope

["emarco" <emarco@xxxxxxxxxxxxxxx>]

Hi,
 
    
    I would like to plot the regression slopeof the last 13 
bars.
 
I have seen this..but is nor working 
for me..
 
x = Cum(1);lastx = LastValue( x 
);Daysback = 10;aa = LastValue( LinRegIntercept( Close, 
Daysback) );bb = LastValue( LinRegSlope( Close, Daysback ) );y = Aa 
+ bb * ( x - (Lastx - DaysBack) );Plot( Close, "Close", colorBlack, 
styleCandle );Plot( IIf( x >= (lastx - Daysback), y, -1e10 ), "LinReg", 
colorRed );
thanks in advance
 
j






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