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Hello,
While we are at giving credits, if you deny giving Howard a
credit for influencing AmiBroker for mere fact that he did not "invent"
Walk-Forward, for sake of correctness you
would probably need to mention original authors of ideas, not
only the followers.
The Walk-forward testing of systems was pioneered
by Robert Pardo in **1991**
PSO by James Kennedy and Russel C. Eberhart
in 1995
And portfolio backtesting first appeared in Trading Recipes in
1994
And for your information without Howard you would not see
walk-forward in AmiBroker in current shape. Why? Because
he was among people who
a) asked for it and popularized it in his book
b) tested early versions
c) provided feedback that helped to make it as user friendly
as it is now.
Best regards,
Tomasz Janeczko
amibroker.com
----- Original Message -----
Sent: Sunday, June 29, 2008 6:24 AM
Subject: RE: [amibroker] Re: Now Where
Can You Find Customer Service Like TJ Provides?
You said, " Howard Bandy's published analytical approaches using AB
as a platform
have resulted in new AB functionality that TJ has
incorporated into
the product." . Which functionality is this? If you're
thinking about objective function and Walk forward analysis, that was
pioneered by Fred ages ago. Otherwise, my mind is blank. Please
enlighten.
TJ's business model is certainly unique.
NEVER before have I seen
a business owner / developer directly
involved with each and every
customer thru a forum like this.
TJ deserves praise for tightly
integrating increasingly sophisticated
functionality into the AB
product.
But the AB customer community deserve a great deal of praise
for
innovative ideas that TJ ultimately adapted to AB.
Fred is a
free-thinker who introduced us to the concepts of portfolio
backtesting
and PSO which have since been tightly integrated into AB.
William
Peters introduced the 'wizard' concept for non-programmer's
which
has since been improved upon and tightly integrated into AB by
TJ.
Howard Bandy's published analytical approaches using AB as a
platform
have resulted in new AB functionality that TJ has incorporated
into
the product.
And there are quite a few other users whose
ideas / suggestions TJ has
implemented into the AB product. And of course
Dimitris was the
ultimate 'end-user' in years past who could show us all
how to
implement new features of AB.
None of this takes away from
TJ's development skills, but it is
important to acknowledge the
contributions of the entire AB community
in the evolution of
AB.
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