Need a formulafor the following:

1. A rise lasing less than 2 months (42 trading days) carries nprice upward at least 90% (shooting for a doubling of stock price).

2. Locate a consolidation area, where prices pause in the prevailing trend near where the price doubles from the trend start.

3. The volume trend in the flag should be receding for best preformance

How long does the "consolidation area" need to be (what is both the minimum and maximum number of bars)?

What is the maximum percent range during this consolidation period?

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I do not care how long the stock consolidates nor how long the flag descended before turning upward. The consolidation area is plainly visible. The consolidation area should be about double the price of the prior 2 month low.

I can't help you create conditions based on subjective (I know it when I see it) definitions. That the consolidation area is "plainly visible" does not in any way narrow down the concept mathematically.

The first step in identifying something algorithmically in TC2000 is to objectively define exactly what you are attempting to identify. You can't do anything else until this first step has been accomplished. Once that is done, you may or may not be able to actually create something in TC2000 that matches the objective definition.

I suggested using a maximum percent range to identify the consolidation period, but if you have a different unambiguous objective definition in mind, we might be able to work with that as well.

If we are using a maximum percent range to identify the consolidation period, then we need to know the minimum and maximum number of bars in the consolidation period to be able to check for consolidation area to be at least 90% above the low of the prior 42 bars.

We need to do this for each possible length of the consolidation period. So if it could be 3 to 50 bars long, we would need to make 48 individual checks. There is no way to just write a formula that magically checks for this over random lengths without checking against all possible lengths that could be valid. If the number of checks is to high, the formula ends up being too long and slow to be practical or post in the forums.

fowlie48, those high and tight patterns I like also, but I've found the best way to find them is the simple eyeball + space bar method. It's all about the crucial skill of pattern recognition.   You should be able to whittle your stock universe list down to a few dozen hight tight candidates with conditions you prefer (avg. volume, price, market cap, etc.)  Then sort this list by price appreciation past couple months where you will instantly find all stocks that rose 90% or more. Flag and put those stocks in a personal watchlist and start monitoring daily to see which ones will form a tight flag to your liking; some may have already formed a flag.  Every day you can quickly in a minute or two space bar through the list and the ones that form a flag will pop out like a sore thumb.