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Is this what you're looking for in pane 1 ?
(you can find this under LINREGINTERCEPT in the Help menu).
// code start
Daysback = 30; // set lookback
x = Cum(1);
lastx = LastValue( x );
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 );
// code end
--- In amibroker@xxxxxxxxxxxxxxx, "Rick" <RickParsons@xxxx> wrote:
> Since I am mathematically challenged, can someone show my how to
> create these two indicators:
>
> PANE 1:
>
> Price chart with STRAIGHT trendline going thru the "middle" of the
> data for XX number of bars back. This trend line should be
> calculated to be equal distance for all high and low closing price
> points for XX bars back.
>
> PANE 2:
>
> Plot the STRAIGHT Trendline defined above straight across Pane 2 so
> it does not slope up or down.
>
> Now plot the Standard Deviation (SD) of price around this STRAIGHT
> trendline. The SD line will plot how many SD's the price deviates
> from the Straight Trendline defined in PANE 1.
>
> I know this will be a challenge. It may be difficult to understand
> just what I am asking and if so, please feel free to ask me
questions.
>
> I greatly appreciate the time and help on this great forum!
>
> Thanks,
> Rick :)
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