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Hi Steve,
The two are only cousins -- they share the notion of
using a linear regression, however the tool is time limited by the length of the
line you draw whereas the built in drag and drop indicator actually creates a
moving average of the linear regression (or something like it).
Additionally, as you may have noticed, the tool works only on a single symbol
(like the other tools, e.g. Fibonacci, trendlines, etc. The drag and drop
indicator becomes a part of the chart you place it on, regardless of the symbol
that is being charted. It was this last issue that prompted me to write a
drag and drop indicator that replicates (with my tweaks) the drawing tool (i.e.,
straight line with channels) but available as a permanent feature on any chart
it is put on (i.e., you can apply it to a price or stochastic or whatever
chart). I placed it in the AFL library a month or two ago. Go to the
library and do a search on linear regression. You'll get a number of
indicators that use the lin reg function - mine is an attempt to replicate
the visual tool found in TC2K as well as be a base for AA searches of different
sorts.
Hope this helps.
Peace and Justice ---
Patrick
----- Original Message -----
Sent: Friday, April 15, 2005 2:50
PM
Subject: [amibroker] Regression Channel
Vs Linear Regression
If I use the drawing tool "Regression Channel" I get a
straight line
(plus 2 channel lines) on my price chart extending as far as
I drag
the indicator.
If I plot Linear Regression on the same chart, I
get a curve which
follows the price - no straight
line.
Example:
Plot(LinearReg(C,52),"LR",1,1);
Questions:
1.
Why are they different?
2. Using AFL, how can I replicate the straight line
of the Regression
Channel?
Thanks,
Steve
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