Search found 9 matches

by bolter
Wed Sep 21, 2005 9:44 pm
Forum: Testing and Simulation
Topic: "Back-adjusted" data experts please....how could I
Replies: 3
Views: 3818

Yes CSI is just EOD. It may be possible to do the back adjusting in Excel - but this seems like a blunt instrument. Excel will puke at the sheer volume of data to start with. I would use some form of procedural language - C, Delphi, Matlab ... whatever. Doesn't really matter. It would be a trivial t...
by bolter
Tue Jun 14, 2005 11:16 pm
Forum: Testing and Simulation
Topic: A discussion about generating synthetic data ?
Replies: 20
Views: 19966

With that said, I'm really open to ideas on how it might be accomplished so it can be tested to see if it add to our knowledge and ability. I've noticed this option in several Monte Carlo tools. I presume it is a very similar problem to solve, except for dates and not trades. I've e-mailed you an e...
by bolter
Tue Jun 14, 2005 3:37 am
Forum: Testing and Simulation
Topic: A discussion about generating synthetic data ?
Replies: 20
Views: 19966

Roger, Great job on the software. I've been reading charts for 20 years and I cannot visually tell the difference between your sythetic data and the original time series. Several questions if you don't mind: 1. I wonder if you have given any thought to some method of retaining the short term serial ...
by bolter
Fri May 27, 2005 3:03 am
Forum: Money Management
Topic: Ryan Jones' Money Management
Replies: 33
Views: 45983

Thanks Roscoe.
Your formula is less agressive initially but the results converge as profit grows, which is as you would expect.

Did you source this from his book/recent material?

Cheers.
by bolter
Fri May 27, 2005 2:02 am
Forum: Money Management
Topic: Ryan Jones' Money Management
Replies: 33
Views: 45983

hi sluggo, Thanks for the heads up. I am working from his course notes dating back to 1997 - which may be problematic. I found them quite difficult to follow but my formula seemed to give the correct results for various worked examples he provided. Having said that, the introduction of initial equit...
by bolter
Thu May 26, 2005 11:34 pm
Forum: Money Management
Topic: Ryan Jones' Money Management
Replies: 33
Views: 45983

I borrowed a copy of the notes from Jones' course (circa late 90's). After working through his math and applying a little quadratic algebra ...... his fixed ratio approach can be expressed with the following formula. l = (1+sqrt(1+8*e/d))/2; where: e = equity d = delta l = number of lots After testi...
by bolter
Thu May 26, 2005 12:52 pm
Forum: Money Management
Topic: How do you handle cash drawings out of your modelling?
Replies: 4
Views: 6764

Leapfrog,

I consider his first 2 books to be veritable bibles. I'm yet to fully comprehend his third book- so I can't recommend it. I can never seem to finish it.

His ideas tend to be controversial, but as a trader, they are too important to be dismissed summarily out of hand.

Good reading.
by bolter
Thu May 26, 2005 12:21 pm
Forum: Money Management
Topic: How do you handle cash drawings out of your modelling?
Replies: 4
Views: 6764

Leapfrog,

If memory serves me correctly Ralph Vince published (his 1st book I believe) several variations to the risk of ruin formula that specifically dealt with various capital withdrawal regimes.

If you want the formulas and don't have the book I can post them - let me know.

Cheers
by bolter
Thu May 26, 2005 11:59 am
Forum: Testing and Simulation
Topic: Synthetic Contracts
Replies: 15
Views: 14988

Hi Roger,

I'll put my hand up. If you're creating some software to generate synthetic data I'd love to have the opporunity to "play" with it.

Cheers