|
PureBytes Links
Trading Reference Links
|
Tomasz:
You are missing the point. The DrawLine function
does not exist because Wealth-Lab does not have manual drawing (but I wouldbe
surprised if that does not appear soon). Instead, with DrawLine
and similar functions Gann, Fibonacci, and other line-type studies can
be effected after calculating where the two points are. The object
then is to draw the lines between those two points. You will never beable
to do such studies with a trendline tool with or without the Study
function. For example, can you draw a Gann fan or Square of 9 with the
trendline tool with anything approaching the required precision and
accuracy? Or, there are Fibonacci retracement levels and techniques that
are not part of AmiBroker's canned indicators. Can you draw those with a
trendline? Could you draw the Fibonacci retracements that are in AmiBroker
by hand? For trading purposes, not in a zillion years. If you are
not familiar with these studies, I can suggest some references and
provide some gif examples. By the way, along the same lines there
are similar functions such as DrawCircle for Fibonacci arcs, etc.
Bottom line is that such functions are very valuable to users, reflecting their
power and ease of use.
Hope this helps.
Bill
<BLOCKQUOTE
>
----- Original Message -----
<DIV
>From:
Tomasz Janeczko
To: <A title=amibroker@xxxxxxxxxx
href="">amibroker@xxxxxxxxxxxxxxx
Sent: Wednesday, July 25, 2001 9:53
AM
Subject: Re: [amibroker] Backtesting
reports
Bill,
I guess DrawLine in Wealth Lab exists simply because there is NO wayto
simply DRAW the trend
line by hand in WealthLab.
Speaking about easy of use:The line between two points can be
simply drawn in AmiBroker. Take a trend line tool and draw.
No need for code. I guess this is much easier than writing the code
for drawing a line!
Then you can use the lines drawn using study() AFL function
as shown in the newsletter
<A
href="">http://www.amibroker.com/newsletter/08-2001.html (Tip
of the week: Using studies in your AFL formulas
)
Best regards,
Tomasz Janeczko
amibroker.com
<BLOCKQUOTE
>
----- Original Message -----
<DIV
>From:
wavemechanic
To: <A title=amibroker@xxxxxxxxxxxx
href="">amibroker@xxxxxxxxxxxxxxx
Sent: 25 July, 2001 15:03
Subject: Re: [amibroker] Backtesting
reports
Tomasz:
FWIW, from a users viewpoint, there is an
advantage to functions that combine other functions into a single
entity. Easy is good.
As for DrawLine, you have picked on one of my
favorites. I am not aware that any combination of graphXY
functions can draw a line between two user-defined points, at least not
as easily as far as I can tell. You have coded a number of indicators
(e.g., ADX, etc.) that one can graph with graphN. If I am smart
enough, I guess that I could go the script route and develop new functions
that could then be used with graphX. I am not an expert programmer so
to do so would be nice but would have to be a labor of love. Being
able to draw a line, including extending it into the
future, between user-defined points would be a big deal that opens
up the opportunity for a variety of line studies. Combining such a
function with an Input function (especially if inputs can be done by
pointing and clicking) opens a universe of line-type studies (e.g., Gann and
Fibonacci) to be programmed, which is a big deal to some of us. Not to
be overlooked is the fact that DrawLine gets programming dummies
like myself into business literally within minutes. Sure, experts
like yourself are up a running in the same amount of time with AFL, JScript,
VBScript, etc., but as evidenced by the discussion on this board there
are many in the "dummy" camp. "Talking down" is not always
bad.
Just my two cents.
Bill
----- Original Message -----
<BLOCKQUOTE
>
<DIV
>From:
Tomasz
Janeczko
To: <A
title=amibroker@xxxxxxxxxxxxxxx
href="">amibroker@xxxxxxxxxxxxxxx
Sent: Wednesday, July 25, 20012:57
AM
Subject: Re: [amibroker] Backtesting
reports
Hello Bill,
What I wrote was my personal opinion,
nothing more.
I had a chance to hear the opinionsabout
AmiBroker from different people
and what I learned is that there isa very
wide spectrum of different views
and preferences among T/A people. AmiBroker
is not all about backtesting
(while WL seems to be). AmiBroker tries
to satisfy these needs
as much as possible. Unfortunatelly
different needs are sometimes contrary
to each other.
This applies especially to the programing
language.
One may say he would prefer a simpler
language another one likes sophisticated
and very complicated tool. I like to code in
C++ others like Basic, Pascal and do on.
I have my reasons, you can have
yours.
That's why I am providing in fact 3
alternatives: you may code your formula in
"pure" AFL, you can use JScript or you can
use VBScript. You can also mix
the languages in a single
formula.
The AFL itself will be improved further so
you will be amazed someday :-)
To the details:
1. Yes,
BuyAtStop and all trade control functions
are nice, because
it is clearer to say BuyAtStop
than doing buyprice, buy stuff together the right way.
2. GetDate, CumUp - I don't see WL advantage
here
<FONT face=Tahoma
size=2>
3. I don't
find any advantage of DrawLine and SetBar color since completelythe
same
could be done in AFL using graphX,
graphXstyle, graphXbarcolor. All the difference
is that in WL you call a function while in
AFL you assign a variable. I can add a function
that is called DrawLine and will internally
assign the variables so there is no real difference,
... maybe except AFL can draw true Gann
Swing charts (see AFL library)
while WL doesn't have square line style
chart.
A bottom line:
Trade control in WL is better and nicer and
I am willing to improve this functionality in AFL,
I like also the statistics in WL. Ithink
that there are lots of nice ideas in WL to get an inspiration
from.
And I really appreciate that you pointed out
the things you like in WL - I learned
something again.
All I dislike is a modal, Borland-looking
(ugly icons on every button), bold-font everywhere
user-interface.
This is however my personal opinionbased on
my personal taste.
Best regards,Tomasz Janeczko===============AmiBroker -
the comprehensive share manager.<A
href="">http://www.amibroker.com
<BLOCKQUOTE
>
----- Original Message -----
<DIV
>From:
<A title=wd78@xxxx
href="">wavemechanic
To: <A
title=amibroker@xxxxxxxxxxxxxxx
href="">amibroker@xxxxxxxxxxxxxxx
Sent: Wednesday, July 25,2001
2:24 AM
Subject: Re: [amibroker]
Backtesting reports
Tomasz:
Have to disagree to some extent. As you
note, the interface is a matter of personal preference, although I tend
to side with Bernard. However, and most importantly, from a
"programming dummy" user's viewpoint, WealthScript might suffer from the
problems that you note, but it is relatively clear with respect to
trading system and drawing functions. Perhaps it is not as
efficient as AFL, but it is easy to build a system with commands like
BuyAtStop, GetDate, CumUp, etc., with only a couple of tutorials as
a guideline. And being able to incorporate drawing functions
(e.g., DrawLine, SetBarColor, etc.) in a straightforward manner is
great, although more is needed in this area (to be expanded in version 2
according to WL). Definitely an attempt to produce a
user-friendly programming environment. Easy to use, "intuitive"
system and drawing functions are arguably
essential endpoints. So much the better, if these attributes
can be further enhanced with respect to speed and simplicity, and placed
within the AmiBroker setting. Or so it seems to this programming
dummy.
Bill
<BLOCKQUOTE
>
----- Original Message -----
<DIV
>From:
Tomasz
Janeczko
To: <A
title=amibroker@xxxxxxxxxxxxxxx
href="">amibroker@xxxxxx
Sent: Tuesday, July 24, 2001 4:44
PM
Subject: Re: [amibroker]
Backtesting reports
Dear Bernard,
Thank you for your opinion.
I have downloaded a trial version of
WealthLab desktop and had a look at it.
Frankly speaking I don't like its user
interface - but this is my private opinion.
What I like are extensive
back-testing statistics. These I would like to see
in AmiBroker.
As for the WealthScript I find it quite
complicated. You have to have at least
3-4 times more code than in AFLto do
the same thing.
Also - I tried to check very basic
MA crossover system and wanted to simulate
trading using 100% capital and WealthLab
displayed very strange equity curve
(with negative cash amounts). What's
more WealthScript seems to be very slow.
As for optimization: yes I willinclude
optimization in 3.7, this will include
multiple-security
optimization.
By the way: it seems that you can only
optimize for one stock in WealthLab, is it true?
Anyway, some ideas are worth
implementing.
<FONT face=Tahoma
size=2>
Best regards,Tomasz
Janeczko===============AmiBroker - the comprehensive share
manager.<A
href="">http://www.amibroker.com
<BLOCKQUOTE
>
----- Original Message -----
<DIV
>From:
Bernard
Bourée
To: <A
title=amibroker@xxxxxxxxxxxxxxx
href="">amibroker@xxxxxxxx
Sent: Tuesday, July 24, 2001
7:17 PM
Subject: Fw: [amibroker]
Backtesting reports
Dear Tomasz
I have a doubt if my message was
published since I can't see it and in fact I haven't finished it. So
here it is completed.
Well I like the following feature (in
the desktop version):
-A window where you can easilyfind the
systems/commentary classified in folders and sorted by name or date
etc.
-The ChartScript window, the equivalent
of the AB main window, have some TAB where you can very easily
evaluate a TS : The first one show the performance, the second the
list of the trades, then one for the alerts, one for the text of the
TS, one for optimisation (I hope that you will implement it in AB
soon), an other one called MonteCarlo (I guess it is to make more
complex optimisation using the Monte Carlo method), the last one is
called Analysis Var but I don't know what it is.
They have also a window where you can
select the trading systems, run them on a watchlist and
perform a ranking of the performances..
You can download the desktop version
for a free trial period and have a good idea of the
product.
It is much more expensive thanAB but
you have given to us the proof that you can easily compete withsuch
products.
In fact more I try to find a good
trading systerm more I came to the conclusion that there is notone
good trading system but we have to find for each period of
time, for each market and perhaps for each stock one good TS which
could have to be changed and adapted as soon as the market
conditions move.
This means that we need to have a tool
that allow us to optimize and compare a bunch of TS
periodically.
So I whish that AB could help us in
this task and allow to adapt and optimise our TS
easily.
For this Tomasz it would be nice if we
could more easily change the parameters of the TS or the chartswith
contextual menus intead of having to write AFL codes.
Best regards
Bernard Bourée<A
href="">bernard@xxxx
<BLOCKQUOTE
>
----- Original Message -----
<DIV
>From:
Tomasz
Janeczko
To: <A
title=amibroker@xxxxxxxxxxxxxxx
href="">amibroker@xxxxxxxxxx
Sent: Monday, July 23,2001
9:50 PM
Subject: Re: [amibroker]
Backtesting reports
Dear Bernard,
Could you please tell me what
exactly do you like in WL's user interface?
Best regards,Tomasz
Janeczko===============AmiBroker - the comprehensive share
manager.<A
href="">http://www.amibroker.com
<BLOCKQUOTE
>
----- Original Message -----
<DIV
>From:
<A title=bernard@xxxx
href="">Bernard Bourée
To: <A
title=sentto-1010692-2837-995838278-bbouree=fairesuivre.com.at.returns.onelist.com@xxxx
href="">sentto-1010692-2837-995838278-bbouree=fairesuivre.com.at.returns.onelist.com@xxxx
; <A title=amibroker@xxxxxxxxxxxxxxx
href="">amibroker@xxxxxxxxxxxx
Sent: Monday, July 23,
2001 7:18 PM
Subject: Re: [amibroker]
Backtesting reports
Hello Tomasz
Yes, there is some good ideas to
use in terms of agronomy (windows design and parameters
settings).
Regards
Bernard Bourée<A
href="">bernard@xxxx
<BLOCKQUOTE
>
----- Original Message -----
<DIV
>From:
<A title=tj@xxxx
href="">Tomasz Janeczko
To: <A
title=amibroker@xxxxxxxxxxxxxxx
href="">amibroker@xxxxxxxxxxxxxx
Sent: Sunday, July22,
2001 11:21 PM
Subject: Re: [amibroker]
Backtesting reports
Hi,
WealthLab is nice. I amcurious
how long will they be free.
I found some interesting ideas
there...
Best regards,Tomasz
Janeczko===============AmiBroker - the comprehensive
share manager.<A
href="">http://www.amibroker.com
<BLOCKQUOTE
>
----- Original Message
-----
<DIV
>From:
<A title=wd78@xxxx
href="">wavemechanic
To: <A
title=amibroker@xxxxxxxxxxxxxxx
href="">amibroker@xxxxxxxxxxxxxxxx
Sent: Saturday, July
21, 2001 10:24 PM
Subject: Re:
[amibroker] Backtesting reports
Tomasz:
How about entry to lowest trough =
trade drawdown
Did you notice the script
functions listed on the Wealth-Lab site? Is that where
AB is headed?
Bill
<BLOCKQUOTE
>
----- Original Message -----
<DIV
>From:
<A title=tj@xxxx
href="">Tomasz Janeczko
To: <A
title=amibroker@xxxxxxxxxxxxxxx
href="">amibroker@xxxxxxxxxxxxxxxxxx
Sent: Saturday, July
21, 2001 4:20 PM
Subject: Re:
[amibroker] Backtesting reports
Hello,
Thank you for the
information.
BTW, here is a definition of
Max. Intraday drawdown from wealthlab:
"Max IntraDay Drawdown
This value represents the greatest peak to
trough distance in your equity curve. Beware of
Systems that have a high Drawdown value."
This is exactly what I meant in my
previous e-mail: "greatest peak to trough
distance".
Now: how should we call entry to lowest
trough distance ( a drawdown measure already present in
AmiBroker) ??
Best regards,Tomasz
Janeczko===============AmiBroker - the
comprehensive share manager.<A
href="">http://www.amibroker.com
<BLOCKQUOTE
>
----- Original Message
-----
<DIV
>From:
<A title=wd78@xxxx
href="">wavemechanic
To: <A
title=amibroker@xxxxxxxxxxxxxxx
href="">amibroker@xxxxxxxxxxxxxxx
Sent: Saturday,
July 21, 2001 9:18 PM
Subject: Re:
[amibroker] Backtesting reports
Tomasz:
Since you will have maximum
drawdown, I suggest including Risk-Adjusted Return
(RAR). This is a standard system evaluation metric
that divides a risk measurement by the annualized rate
of return. You could use maximum drawdown as the
risk measurement, but other measures (volatility,
standard deviation, etc.) would also
work.
The following link lists the
system evaluation parameters used by
Wealth-Lab:
<A
href="">http://www.wealth-lab.com/cgi-bin/WealthLab.DLL/getpage?page=$imOverview.htm
Bill
----- Original Message -----
<BLOCKQUOTE
>
<DIV
>From:
<A title=tj@xxxx
href="">Tomasz Janeczko
To: <A
title=amibroker@xxxxxxxxxxxxxxx
href="">amibroker@xxxxxxxxxxxxxxx
Sent: Saturday,
July 21, 2001 12:00 PM
Subject:
[amibroker] Backtesting reports
Hello,I would like to ask
you:What additional back-testing statistics would
you like to see in AmiBroker?Please give me
your suggestions with the description.For
version 3.64 already included are:- Annual
system percentage profit- Annual B&H
percentage profit- Maximum drawback calculated
from maximum equity value to the minimum
equity value (BTW: How to name this one? I
have no idea) (note this is different from
current max. drawback calculation
which computes max. equity dip
from the trade entry)- Bars out of
marketI have got already some of your earlier
suggestionsbut anyone has something
more?Best regards,Tomasz
Janeczko===============AmiBroker - the
comprehensive share manager.<A
href="">http://www.amibroker.com Your
use of Yahoo! Groups is subject to <A
href="">http://docs.yahoo.com/info/terms/
Your use of Yahoo!
Groups is subject to the <A
href="">Yahoo! Terms of
Service. Youruse of
Yahoo! Groups is subject to the <A
href="">Yahoo! Terms of
Service. Your use of
Yahoo! Groups is subject to the <A
href="">Yahoo! Termsof
Service. Your useof
Yahoo! Groups is subject to the <A
href="">Yahoo! Terms of
Service. Your use of
Yahoo! Groups is subject to the <A
href="">Yahoo! Terms of
Service. Your use of Yahoo!
Groups is subject to the <A
href="">Yahoo! Terms of
Service. Your use of Yahoo!
Groups is subject to the <A
href="">Yahoo! Terms of
Service. Your use of Yahoo!
Groups is subject to the <A
href="">Yahoo! Terms of
Service. Your use of Yahoo! Groups is
subject to the Yahoo!Terms
of Service. Your use of Yahoo! Groups is
subject to the Yahoo! Terms of
Service. Your use of Yahoo! Groups is
subject to the Yahoo! Terms of
Service. Your
use of Yahoo! Groups is subject to the <A
href="">Yahoo! Terms of Service.
|