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- 12 November 2007
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- 47
Yeh everything is fitted, but not everything works on unseen data.
I had to look up sigma. Six sigma came up a bit on google - basically a big move (6 std devs)and what happens next. http://www.marketcalls.in/trading-l...-about-six-sigma-events-in-stock-markets.html
Well I guess that's the risk we're willing to take by trading, can only minimise the risk, make the best call we can based on recent history/price action. Every trade we take is going to play out on unseen data, otherwise you have a serious gift and can see into the future
Yeah there are the outliers which would also provide opportunities, on the day and after it I would imagine.
Thank you once again, Joules!Fari Hamzei (constant top 5 US market timers according to timerdigest.com) is now making calls on $DAX
he's a big user of sigmas ...take some time to check out his work....at least watch a cupla vids of his if you want a diff perspective
https://twitter.com/HamzeiAnalytics
http://www.hamzeianalytics.com/Educational_Webinars.asp
Thank you once again, Joules!
Is timerdigest worth subscribing?
Mathematical analysis has been an eye-opener and I see a vast potential in this area. I have only used it on equity trades. Been mostly trading based on understanding of fundamentals, news, calendar events and my half-baked comprehension of chart patterns.... and mostly using excel and manually importing data from yahoo.
I have enrolled in couple of financial markets courses and programming courses via coursera - am currently considering quandl for my data source. I have yet to figure out if ninjatrader can do what I want. Lots to explore over the next few weeks.
rvm
You missed the point. Testing on unseen data is possible with the right software. If the optimized parameter fails on unseen data, the edge isn't really an edge. If it passes, then it's a tradable edge.
Yep I don't get the point. So its just random data it tests against or something? I don't get how it can forward test when I'm using data/info from one instrument. I'm calculating std dev from recent months, and updating every week. I don't understand how or the point of forward testing that. Its not a set of rules or mechanical.
All you need is software which does walk forward testing (eg. Amibroker). Say you're trading ES. You can choose how AB will break up the historical data of this single instrument, so that some is in-sample (training or 'best fit' data) and some is left as out-of-sample (unseen).
eg. Use 2000-2001 to optimize the best SD. AB finds best SD = 1.6. Now it will take that number (1.6) and run it on data from 2001-2002 to see whether it's still profitable. 2001-2 is data which has had nothing to do with the optimization/fitting process, so it can be regarded as unseen. This way we get to know whether an optimized number from last week/month/year will hold up and be profitable today and going forwards.
Howard Bandy has written a lot on this.
Sam are you live or sim?
Just back to sim while I'm making and playing around with my levels to see how they go
Cool mate - same here.
Just got excited when you wrote 4k day thats all
Yeah I probably wouldn't say anything if it was live, mainly use this thread for sim/testing things, doubt anyone would care or read this to justify posting all my details, so I'm surprised you're even reading hereCheers! All the best with your trading
Hey Sam ..... Just bumping this thread after reading through it again in its entirety last night.
No pressure intended so whether you carry on with anything etc is totally up to you but given some of the results you had achieved over a short period i reckon you were pretty close to something potentially life changing in your trading so this is just a post to encourage you to keep cultivating your ideasCheers.
Wow thanks barney! Surprised you maintained enough interest to read the entire threadSorry I totally missed your post with all the other threads being more active.
did well off Brexit and Trump's election in 16, and also turned 1.5k into about 8k in around 4 weeks or so.
Then had a string of a couple days of stupid decision and had some losses that really made me angry at myself, I didn't blow up the account or anything, just was down about it and mad at myself
paid for the trip when I was over there with a nice trade, so that was awesome.
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