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I believe if you add a 20-day std dev channel to a 2o-day moving average,
you get Bollinger bands. Perhaps that's what you want.
Mike
-----Original Message-----
From: owner-metastock@xxxxxxxxxxxxx
[mailto:owner-metastock@xxxxxxxxxxxxx]On Behalf Of Manuel Barquin
Sent: Wednesday, April 21, 1999 8:19 AM
To: Metastock@xxxxxxxxxxxxx
Subject: RE: Building blocks - Trend channels
Adam: Thanks for your two messages on standard deviation channels. The
channels that I see on the Metastock left tool bar is the Raff Regression
Channel button which I do not kow if this one is similar to the standard
deviation channel. From the MS help "A Linear Regression trendline is used
to construct Raff Regression Channels (see Raff Regression Channels).
Developed by Gilbert Raff, the channel is constructed by plotting two
parallel, equidistant lines above and below a Linear Regression trendline.
The distance between the channel lines to the regression line is the
greatest distance that any one high or low price is from the regression
line". Anyway, I am going to review (study) my statistics book. Actually,
what I was trying to do is to build up a standard deviation formula which
will be included in the Metastock system tester, but before that, I was
surprised to see that if I plotted the standard deviation formula contained
in Metastock........
SYNTAX stdev( DATA ARRAY, PERIODS )
FUNCTION Calculates the predefined Standard Deviation indicator.
EXAMPLE stdev( CLOSE, 21 )
..... the standard deviation representation curve is very distant to the
prices. Anyway, I might be wrong, but I was assumming that standard
deviation prices were located near to the prices (1 or 2 standard
deviations). I better have to re-study my statistic's book, and then, I
might contact Jim as you suggest in your message (according to one of his
last messages he will be out of town for a couple of weeks).
Thank you for your help,
Manuel Barquin
----- Original Message -----
From: Adam Hefner <VonHef@xxxxxxxxxxxxx>
To: <metastock@xxxxxxxxxxxxx>
Sent: Monday, April 19, 1999 6:22 PM
Subject: Re: Building blocks - Trend channels
Manuel,
I believe Jim uses the "Standard Deviation Channel" from the "tool-bar".
Look on the tool-bar (I think its to the left of the chart) and it
should be listed with the other channel functions.
Best wishes,
Adam Hefner.
VonHef@xxxxxxxxxxxxx
---------------------------------------
----- Original Message -----
From: Manuel Barquin
To: Metastock@xxxxxxxxxxxxx
Sent: Monday, April 19, 1999 9:06 AM
Subject: Building blocks - Trend channels
The following mesage is related to a message from Jim G. in which he
explained the way he builds his short term channels.
Maybe someone could help me with "how to build standard deviation channels.
Regarding building blocks and messages on this subject, I have been trying
to build a channel when dealing with short term channels (using the
Metastock standard deviation) . I have placed a commodity chart on the
screen, then I downloaded the standard deviation Metastock indicator from
the indicator builder. I have used in the "scaling options screen" the first
option: Display new scale on left, and the standard deviation does not
follow the price trend. If I use the option: Merge with scale on left, the
standard deviation graph is very distant to the price graph. Could you
please tell me how do you display the standard deviation function on your
price curve, so that i could see a channel? I know this is a very basic
question but this is here I am at.... Thank you. By the way I am still
using MS 5.11
>From Madrid
Manuel Barquin
Tel-Fax: (34 91) 563 92 80
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