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Stock Trading Rules - Percentage That Passed in the Last Trading Days
This trading indicator calculates the percentage of bars, during a given period, in which the provided stock trading rule is higher than zero.
The function has two parameters: the trading rule which value will be checked and the lookback period.
If the function returns a value of 100%, this means that during all bars in the lookback period, the provided trading rule was true or higher than zero.
It if returns a value of 0%, this means that during all bars, the trading rule value was false or lower than or equal to zero.
Here are some examples of stock trading rules:
PerRule(close > open, 5) == 100
This stock trading rule returns one if the stock's close price is higher than open price for five consecutive trading days.
PerRule(close > ref(close, 1), 10) < 20 and perf(close, 10) > 0
The above stock trading rules detect stocks where the 10-Bars return is positive and the close price increased (closed above the previous day close price) in less than 20% of the ten previous bars.
PerRule(rsi(14) > 70, 20) > 70
This stock trading rule calculates the percentage of bars (20) in which the Relative Strength Index indicator closed above 70 and returns true if this value is higher than 70%. This means that this stock trading rule detects stocks whose RSI value was higher than 70 in more than 70% of the previous twenty bars.
PerRule(close > open and close < ref(close, 1), 4) == 100
The above stock trading rules detect a pattern that occurs when the stock price closes below the previous close during four consecutive bars and when at the same time the close price is higher than the open price during these four bars.
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