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Messages 958 - 989 of 990   Oldest  |  < Older  |  Newer >  |  Newest
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958
Jeff, would you include the OS Sharpe in the target function for actual (not "debugging") system development/optimization and why? Thank you, Leon ...
Leon Levinov
leonlevinov
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Aug 12, 2009
9:13 pm
960
I will purchase C-Trader Pro if it significantly outperforms TradeStation in speed(5-10x increase) for fairly large datasets. I have asked questions before in...
cohndw
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Aug 20, 2009
4:33 pm
961
Dave, I have been where you are some time ago - wondering if this is the right tool for my needs, but couldn't get enough info. So I will try to help you. ...
Leon Levinov
leonlevinov
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Aug 20, 2009
6:45 pm
962
Yes, there is a possibility of sending commands to Metatrader by writing a DLL. Haven't tried it yet because of lack of time (and I don't like coding under...
Barnabas Debreczeni
barnabas_deb...
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Aug 20, 2009
8:04 pm
963
Dave, I would be glad to do so but I don't have an account with them (so I don't have access to TradeStation) I am using MetaTrader 4 so if anyone's...
Barnabas Debreczeni
barnabas_deb...
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Aug 20, 2009
9:25 pm
964
Hi, C-Trader does indeed appear to be far faster than TradeStation based on tests I conducted in the late 1990s. Much of this speed can be explained simply by...
Jeffrey Owen Katz
optionstrade...
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Aug 21, 2009
5:33 am
965
Leon, Thanks for your rapid and extensive feedback. I did not know that you could run multiple instances, one for each processor - that can be worth quite a...
cohndw
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Aug 21, 2009
1:50 pm
966
Barnabas, Thanks for your quick reply. I appreciate your explanation of the development sequence between C-Trader Pro and MT4, and this is what I would expect...
cohndw
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Aug 21, 2009
1:57 pm
967
Jeff, Thanks for taking the time to reply quickly and thoroughly. My programming backgrounds helps me understand your points about the differences between...
cohndw
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Aug 21, 2009
2:09 pm
968
Dave, The strategy that I tested was not out-of-the-box. And as to comparing apples to apples, I think that it might be that my test is the closest you can get...
Leon Levinov
leonlevinov
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Aug 21, 2009
6:02 pm
969
It seems that in the function (libmisc.c) the smoothing length is taken 3 times longer. in the forth line ...i=...cb-3*n... effectively making the length x3. ...
LeonL
leonlevinov
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Oct 1, 2009
7:02 pm
970
Hi, The reason the length is 3*m is because we are dealing with an exponential moving average-- in reality, you would theoretically want to sum back to the...
Jeffrey Owen Katz
optionstrade...
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Oct 1, 2009
7:50 pm
971
Hi Jeff, OK, I get your point. Thanks, Leon ________________________________ From: Jeffrey Owen Katz <jeffkatz@...> To:...
Leon Levinov
leonlevinov
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Oct 1, 2009
8:19 pm
972
Hi Jeff, I thought I read something about C-Trader being able to work with IB to get real time data and execute trades. Is this still in the works? thanks,...
weitau
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Oct 2, 2009
2:54 am
973
Hi, We are planning to get C-Trader to work live with IB for completely automated trading. However, due to critical issues of fault tolerance, IB's frequent...
Jeffrey Owen Katz
optionstrade...
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Oct 2, 2009
9:06 am
974
Hi Jeff, I messed with this a few years ago, both my own code and connector packages sold by others. The biggest problem is testing. You have to place real...
Richard Foulk
richard_foulk
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Oct 2, 2009
10:36 am
975
Hi, Have anybody come across the same problem? I am working with intraday stock data. Recently I have discovered a problem in the data that is converted into...
LeonL
leonlevinov
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Oct 13, 2009
12:32 pm
976
Hi Leon, First thought - is it something to do with the 'corrections' which Jeff has included for IB data in respect of time-zones and summer-time (American:...
Nick Fairbank
nick.fairbank
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Oct 13, 2009
12:45 pm
977
I've noticed the same data shifting problem with 1 minute bars as well. However since all the data was shifted by the same amount, we ignored it. Another...
weitau
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Oct 13, 2009
2:15 pm
978
Hi Nick, Right on target! The problem arose since I used the CSV file with the dates and time that are correct and no need for daylight saving time...
Leon Levinov
leonlevinov
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Oct 13, 2009
6:10 pm
979
Does anyone have advice on getting historical intraday data at a reasonable price to use with C-trader? I'm looking for 2 to 4 years of S&P 500 data with 5 or...
yellowishsubmarine
yellowishsub...
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Oct 14, 2009
12:28 am
980
http://pitrading.com/historical_data.htm...
weitau
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Oct 14, 2009
2:16 am
981
Thanks, Marc ... From: weitau <robert@...> Subject: [scientific-traders] Re: intraday data To: scientific-traders@yahoogroups.com Date: Wednesday,...
Marc K
yellowishsub...
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Oct 14, 2009
2:31 pm
982
Maybe this 2012 stuff is of some interest to members of our group.  Mayans, Hopis, even Nostradamus have some sort of prophecy pertaining to 2012.  Just...
Cycles Studies
cyclesstudies12
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Oct 16, 2009
2:19 pm
984
Hi, The last valid bars are indeed used to fill missing bars. However, filled (as opposed to real) bars are marked by having volumes of exactly 0.0; valid...
Jeffrey Owen Katz
optionstrade...
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Oct 18, 2009
8:06 am
985
Hi, The throttling is no problem, as one can collect the data in several passes with a few minutes between them. In fact, this method is implemented in...
Jeffrey Owen Katz
optionstrade...
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Oct 18, 2009
8:10 am
986
Hi, It seems that during the optimization the trades simulation and calculations are performed both on in-sample and out-of-sample data. Since I use IS and OOS...
LeonL
leonlevinov
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Oct 23, 2009
12:02 pm
987
Hi, Replace the default fitness function in calc_stats() with one that only looks at the in-sample data. Then, use setdates command to set up a in-sample start...
Jeffrey Owen Katz
optionstrade...
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Oct 24, 2009
7:01 am
988
Hi, You are absolutely correct: you need to test systems "live" in the market; simulations are not the same thing at all. I would add that this is especially...
Jeffrey Owen Katz
optionstrade...
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Oct 24, 2009
8:45 am
989
Hi Jeff, Thank you for prompt answer, will try your solution with the calc_stats(). Regarding IS and OOS optimization etc. What I do - I do optimization IS,...
Leon Levinov
leonlevinov
Online Now Send Email
Oct 25, 2009
8:43 am
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