Move the Markets

Math and Programming • Let Over Lambda

2010-03-16T01:42:00-05:00

Has anyone read this book?

http://letoverlambda.com/

I'm a big functional programming fan, and am itching to do a little lisp-ing (or more likely, scheme-ing). This might be a book to inspire me.

About four years ago I made a non-strict scheme-y interpreter. It was running useful programs, but I never finished it. Part of me wants to resurrect that project, but I've got so many projects in motion right now I doubt that's a good idea

Statistics: Posted by Richard — Tue Mar 16, 2010 1:42 am

Trading • Re: ZenFire vs. Barchart.com feed

2010-03-15T20:37:16-05:00

Chris at Fulcrumtrader is very easy-going, except about the accuracy of Zenfire data when it comes to cumulative delta. After studying, he emphatically states it's not good enough and drops data. This is kind of nudging me toward upgrading my data feed. He said he has some guys that are using Ninja successfully with the DTN data.

Statistics: Posted by DavidB — Mon Mar 15, 2010 8:37 pm

Trading • ZenFire vs. Barchart.com feed

2010-03-15T13:55:46-05:00

Interesting, I had a 75-tick chart of ES up on NT7+zenfire and a 75-tick chart of ES up on Multicharts+barchart.com.

Look at how many more ticks are coming across the tape on the barchart.com feed, compared to the zenfire feed! Very interesting. And the associated volume in the different areas is much higher, as you might expect. I guess I also should wonder if it's an NT7 issue rather than a zenfire one....

Statistics: Posted by Richard — Mon Mar 15, 2010 1:55 pm

Math and Programming • Re: The Joy of Pseudo-Science

2010-03-14T23:11:49-05:00

taotree wrote:
Richard wrote:I'm not sure what you can call it, but what you would do is apply it to your everyday life to the extent that it's useful.

But does un-falsifiable also mean untestable? If so, how does one know if it's "useful" or not?

I've been thinking about this. It's interesting, because when the brain is involved, there is a hidden step between what you do and what you can observe later. Kinda like money-laundering... what comes out on the other side isn't easily traceable to what came in.

Here's a concrete example: In Embracing the Wide Sky, Tammet makes a case that savant-type abilities are built on deep linkages between concepts. A savant himself, he experiences numbers as things with colors and shapes. In this way, he thinks his brain does extraordinary arithmetic and memorization by calling on facilities normally only used for other types of processing (like when we do arbitrary computations on graphics cards today! ). He thinks a lot of what we call creativity (in music, poetry, etc.) is built on deep and extended metaphors, as well.

So could a person follow suit, and learn sometimes arbitrary connections between concepts (like between numbers and shapes), in hopes that their brain can pick up the ball at some point and run with it? I wonder, and if so I also wonder if it's only possible for young children to do it.

It also makes me wonder how arbitrary the connections need to be. Would more logical correlations between concepts be more or less helpful than random ones? People have done plenty of ontological work over time. We have Jung's archetypes, platonic forms, the dewey decimal system . Many artificial languages, such as lojban, basic english, esperanto, etc., attempt to boil down the concepts we discuss into logical and small sets of primitives as part of their development. Divination systems have to do something similar, such that you can make a connection from combinations of cards, runes, planetary positions, whatever, to just about any occurrence. So there's lots of material to draw on there.

So, I'm not sure where I stand on the question of whether approaches to working on the brain need to falsifiable, and what to do about it when it's not.

Statistics: Posted by Richard — Sun Mar 14, 2010 11:11 pm

Trading • One Way To Think About Indicators

2010-03-14T22:07:56-05:00

One way to think about technical indicators:

You're reading a book. You have an assistant that highlights sentences that look interesting. This can help you give special attention to the sections with the most explanatory potential. It might even drive you to look at a section you were tempted to skip. But what can an assistant like this not do for you:

He can't always mark every section you would mark. Some may be missed. Some sections you feel are unimportant may be marked. So it's not a good idea to depend entirely on the highlit areas.
He can't add information that isn't there. If the book doesn't cover a topic, highlighting what it does cover won't correct the deficiency.
He can't give you comprehension. You still have to do the reading and understand the information for yourself.

Expecting more than that is a bit unrealistic.

Statistics: Posted by Richard — Sun Mar 14, 2010 10:07 pm

Math and Programming • Re: Customizing Ninjatrader Toolbar/Panels/Etc.

2010-03-12T10:56:18-05:00

mindset wrote:
What is the difference between OnStartUp() and Initialize()?

OnStartUp() is only called when an indicator is going to actually be calculated. You'll have access to a Bars object, and the ChartControl, etc. Initialize is called whenever NT decides to create a temporary version of an indicator (like when messing with indicators in the indicator dialogue) that will never be calculated. So OnStartUp() and OnTermination() are a nice pair of methods for allocating resources and freeing them. Before that, you had to keep a boolean bInit flag or something for stuff that you couldn't do in Initialize(), and do that stuff the first time through OnBarUpdate() instead. OnStartUp() is far superior.

Statistics: Posted by Richard — Fri Mar 12, 2010 10:56 am

Math and Programming • Re: Customizing Ninjatrader Toolbar/Panels/Etc.

2010-03-12T07:07:04-05:00

What is the difference between OnStartUp() and Initialize()?

Statistics: Posted by mindset — Fri Mar 12, 2010 7:07 am

Announcements and FAQs • Fulcrumtrader webinar Today Thurs, 3:30pmCST LINKhere

2010-03-11T13:43:43-05:00

Hello MtM traders,
Here's the link to Fulcrumtrader's GoToWebinar today, Thursday, March 11, 3:30pm CST (4:30pm EST):
https://www2.gotomeeting.com/register/964895218

Chris Koozekanani is Fulcrumtrader, his site for more information is www.Fulcrumtrader.com

Statistics: Posted by BrianG — Thu Mar 11, 2010 1:43 pm

Announcements and FAQs • Re: Fulcrumtrader webinar this Thurs,March 11, 3:30pm CST..l

2010-03-11T13:26:51-05:00

Just a reminder that the FulcrumTrader webinar is today at 3:30PM Central (4:30 PM Eastern). Link to be posted later.

Statistics: Posted by Richard — Thu Mar 11, 2010 1:26 pm

Entertainment • The Quotable Stanley Kubrick

2010-03-11T12:11:16-05:00

"I think the unconscious appeal of a ghost story, for instance, lies in its promise of immortality. If you can be frightened by a ghost story, then you must accept the possibility that supernatural beings exist. If they do, then there is more than just oblivion waiting beyond the grave."

(speaking about his 1980 adaptation of Stephen King's The Shining)

Statistics: Posted by Richard — Thu Mar 11, 2010 12:11 pm

Move the Markets

Math and Programming • Let Over Lambda

Trading • Re: ZenFire vs. Barchart.com feed

Trading • ZenFire vs. Barchart.com feed

Math and Programming • Re: The Joy of Pseudo-Science

Trading • One Way To Think About Indicators

Math and Programming • Re: Customizing Ninjatrader Toolbar/Panels/Etc.

Math and Programming • Re: Customizing Ninjatrader Toolbar/Panels/Etc.

Announcements and FAQs • Fulcrumtrader webinar Today Thurs, 3:30pmCST **LINK**here

Announcements and FAQs • Re: Fulcrumtrader webinar this Thurs,March 11, 3:30pm CST..l

Entertainment • The Quotable Stanley Kubrick

Announcements and FAQs • Fulcrumtrader webinar Today Thurs, 3:30pmCST LINKhere