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Re: [amibroker] Backtesting reports



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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 AFL to do thesame 
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 will include 
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@xxxxxxxxxxxxx 
href="">amibroker@xxxxxxxxxxxxxxx 
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 easily find 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 forthe 
alerts, one for the text of the TS, one for optimisation (I hope that youwill 
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 fora free 
trial period and have a good idea of the product.
It is much more expensive than AB but you have 
given to us the proof that you can easily compete with such 
products.
 
In fact more I try to find a good trading systerm 
more I came to the conclusion that there is not one 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 thistask 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 charts with 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@xxxxxxxxxxxx 
href="">amibroker@xxxxxxxxxxxxxxx
Sent: Monday, July 23, 2001 9:50 
PM
Subject: Re: [amibroker] Backtesting 
reports

Dear Bernard,
 
Could you please tell me what exactlydo 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: 
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@xxxxxxxxxxxxxxx 

Sent: Monday, July 23, 20017:18 
PM
Subject: Re: [amibroker] 
Backtesting reports

Hello Tomasz
 
Yes, there is some good ideas to usein terms 
of agronomy (windows design and parameters settings).
 
Regards
Bernard Bourée<A 
href="">bernard@xxxx
<BLOCKQUOTE 
>
----- Original Message ----- 
<DIV 
>From: 
Tomasz 
Janeczko 
To: <A 
title=amibroker@xxxxxxxxxxxxxxx 
href="">amibroker@xxxxxxxxxxxxxxx 

Sent: Sunday, July 22, 2001 11:21 
PM
Subject: Re: [amibroker] 
Backtesting reports

Hi,
 
WealthLab is nice. I am curious 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@xxxxxx 

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: 
Tomasz 
Janeczko 
To: <A 
title=amibroker@xxxxxxxxxxxxxxx 
href="">amibroker@xxxxxxxx 

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@xxxxxxxxxx 

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: 
Tomasz 
Janeczko 
To: <A 
title=amibroker@xxxxxxxxxxxxxxx 
href="">amibroker@xxxxxxxxxxxx 

Sent: Saturday, July21, 
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 
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