Simple pattern detection rules using close and open prices

This list contains 42 trading rules. These rules use the close and open prices to detect simple patterns like:
The close price is higher the close price of yesterday.
The open price is near the low price for the day.
The close price is lower than the low price of the day before yesterday.

The idea is to use the optimizer to test these simple rules and detect a profitable pattern that will result from a combination of these rules.
I would suggest adding some other rules based on indicators, volume price or composites, and backtest these rules on various assets.
Half of these rules deal with the close price and the other half deal with the open price.

Here are 3 examples:
close < 1.01 * low
close < ref(close, a) where a varies from 1 to 3
open < ref(open, a) where a varies from 1 to 3

You can extend these formulas by adding for example a parameter to the first formula (close < a * low; where a varies from 1.005 to 1.05 with 0.005 as step) or changing the maximum value of the variable 'a' in the second formula (set for example 'a' to vary from 1 to 10)

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