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There are two different segments of data-mining. One is a discovery phase (while this is continuously in development, it is very useful in it's present state). The other is a phase to increase the probability from results that were generated in back-testing. There will be also be a version...

It was a part-time project and I started with one programmer who had numerous issues and he had a 'mac' (that should explain a lot), thought he knew what he was doing. So, six months later I found a guy who really did know what he was doing. The trading part didn't take all that long, but the...

I would not call Tradelink a data-mining tool. It is an open source automated trading platform with back-testing capabilities. It seems like it could be useful to somebody that wants to learn how to use it. And you would definitely have to piece a lot together. Apparently there are...

I am interested in how they vary, but the variance often depends on the volatility of the stock. Stocks that trade in wide ranges are very similar and stocks with small ranges are similar. Market Based ETFs are much different than Sector Based ETFs because on an intra-day basis, the Sector...

What you are describing is data-mining, but it's not a phase of initial discovery. You have already made assumptions by creating a system and back-testing it. You may be mining your back-tested data to determine the best method, but that's hardly using data mining as a tool of discovery. You...

He is playing a different game, he's a high frequency trader...look outside the box. That's not the only game, the market is open 6.5 hours. If you want to jump in that game, go ahead, but as you said it's going to be tough. However, it's a totally different game. What's his average...

There are many different forms and approaches to trading ...both intraday as well as short-term. While I will not discuss the details of my personal method, I will say that it is not scalping. Most people here believe that scalping is the only form of intraday trading. Once again people...

I have pointed a few people to a similar tutorial. However, the tutorial that you read, was a bad example. I say this because the author calculated the moving average in the spreadsheet before inserting it into the database. Not necessary and it's extremely limiting. I asked him, why didn't...

Not to mention, it shouldn't be the first phase of system development, but it often is. It is also true considering that most software packages available main focus is on technical analysis. Very few allow for data-mining, which should be the STARTING point in system development. When you...

And only 2 years of back-testing even on a daily basis is just asking for a disaster. I have seen an intra-day platform that offers 2 weeks of back-testing, you've really got to be a fool to think that's a good idea, I thought this must be a joke.

Excel is not even an option if you want to test across a lot of symbols. With today's tools, it would almost be a waste of time. With a PHP / MySQL platform you already have the data, you just process it and you can do it on any symbol in your database - in seconds. With excel, you have to...

I am using PHP / MySQL for research and testing, not order placement. If you are going to learn a language, learn something useful. I have tried all software platforms. I can code, and all software packages had their downfalls and they all focus on technical analysis. This is fine, but...

PHP combined with a MySQL Database is an extremely easy way to develop a back-testing framework. It is also a very effective way to mine data, something that you really can't effectively do in the commercial platforms. The biggest advantage is that this method allows the numbers to speak for...

OK, I will stop. Thanks

Thanks...Don't think I will be doing that one. I was referring to my previous post when I was told that a Gap that hadn't filled after three days would probably run. I asked probably? He said it was a time-tested 'Rule of Thumb'...if that is the case and it was a profitable venture, then...

Just wanted to know if anyone out there is trading based on Rules of Thumb... If you have any good ones, shoot them my way, so I can try to take the other side... :D

Don't follow that one trades less than 100k a day, except somebody bought a bunch of it. That looks like somebody might know something. For what it's worth, the data I am posting in the post is for intra-day trading only.

Very interesting concept, but probably? or probability?

I will have to do more research on this, as I have been 'told' so many things about what happens when, I will just put it to the Test and find out. However, from what I have found, in this situation, the Gap fills 65% of the time back to the CLOSE. If this is the case, the market had to have...

I will re-check these numbers as I just put this together, but here are the results for the QQQQ's. High Probability Trade didn't work out here as the QQQQ's didn't close the Gap even to the Low (missed by 7 cents). BLDD (Below the Low of Down Day)Analysis BLDD Count: 289 BLDD Count...