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.