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In the last year that I have been paying attention, numerous people on
various lists have stated their view that Mark Jurik's adaptive JMA is
smoother with less lag than any other adaptive moving average.
In the last year that I have been paying attention, numerous people on
various lists have stated their view that Mark Jurik has been very helpful
to them.
My own view of JMA is consistent with what other people have written (I've
spent a good deal of time visually comparing JMA to TEMA; I wouldn't think
now of using TEMA instead of JMA).
Mark has graciously spent more time on the phone with me than I can imagine
any vendor spending.
Moreover, in my view, the recent book he has edited entitled "Computerized
Trading" greatly enhances Mark's standing as a serious student and teacher
of computerized technical analysis.
Mark's statement below of why he cut the JMA free trial makes absolute sense
to me.
I have no personal or business relationship with Mark or Jurik Research
other than my being a customer.
Steve Buss
sbuss@xxxxxxxxxxx
-----Original Message-----
From: wong <whs@xxxxxxxxxxxx>
To: Robert W Cummings <robert.cummings@xxxxxxxxxxxxxxxx>
Cc: code-list@xxxxxxxxxxxxx <code-list@xxxxxxxxxxxxx>; omega-list@xxxxxxxxxx
<omega-list@xxxxxxxxxx>
Date: Sunday, March 07, 1999 12:04 PM
Subject: RE: CL_Adaptive moving avg. -in defence of Jurik
>Hi All:
>
>I never want to be involved in a discussion between vendors and prospective
>buyers.
>
>However, since I've dealt with Mark, I can say DEFINITELY that he is an
>extremely helpful and friendly person, and has helped me and answered all
>my responses every time in the past.
>
>Regards,
>
>Wong
>===========================================================================
=
>========
>At 01:32 PM 03/07/99 -0600, you wrote:
>>So in others words the free lookers didn't buy so you decided that wasn't
>>good for you.
>>You felt it better for the public to buy then be stuck with your indicator
>>if they didn't like or couldn't use them. I see why you call it a business
>>decision. Here's an idea if your satisfaction rate is 95.5 as you claim
>>then offer a money back offer during a limited trial period and have a
100%
>>satisfaction rate.
>>
>>Robert
>>
>>
>>
>>
>>
>>>I can understand your concern about there being no free trials. I'd be
>>suspect as well. Years ago we did offer it and discovered that free trial
>>testers were not willing spend the time to "unlearn" old habits gathered
>>from using lagging indicators, and learn new ways to apply low-lag
signals.
>> For example, a common first-approach toward creating a MACD with JMA is
to
>>use it for both the fast and slow crossover lines as follows:
>>>
>>>MyMACD = JRC.JMA(close,6,0) - JRC.JMA(close,30,0);
>>>
>>>However, the result is mediocre. This is because MACD actually
*requires*
>>lag, but only *between* the two crossing lines. Therefore, for best
>>results, it's better that the slower line have as both lag and momentum so
>>that it does not weaken when price reverses. Otherwise, the crossover is
>>delayed as the faster line tries to meet the slower one (which is turning
>>away). A simple moving average has more lag and momentum than JMA. So a
>>better MACD would be as follows:
>>>
>>>MyMACD = JRC.JMA(close,6,0) - average(close,30);
>>>
>>>Learning when and where to add or remove lag in technical indicators
takes
>>time, and we found that during a brief trial period, the user is not
>>committed to making the effort, and thus may decide JMA is not much better
>>than what he already has.
>>>
>>>We realize that having no free trials will discourage some from acquiring
>>our software, and that's OK. To help in the decision making process, our
>>web site displays numerous charts that point out JMA's advantages, and
>>posts a large collection of letters from users. We also try to provide
>>quality tech support (within reason).
>>>
>>>All in all, we're happy to have a user satisfaction rate better than
99.5%
>>>
>>>Regards,
>>>
>>>Mark Jurik
>>>Jurik Research
>>>http://www.jurikres.com
>>>
>>
>>
>>
>
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