Note that Symbols Group statistics module is not available in CandleScanner Basic edition (symbol statistics is available however).

It’s not enough just to know that a pattern has occurred on the candlestick chart, but also how “well” or “badly” it had performed in the past. In other words, how effective is the signal being generated?

And here, even before going into a heavy duty backtesting analysis, we can check some simple statistics first. As a first pass, there’s no need for detailed model optimization, no need for sophisticated entry/exit methodology and no need for risk and money management rules, just a basic analysis of the underlying statistics. What matters at this stage is: the number of accurate occurrences (how statistically significant the results are) and the price behavior within 5 or 10 subsequent candlesticks after the pattern’s occurrence.

The most challenging aspect is to effectively convey the statistics and present them in such a way readily showing pattern efficiency, just after its occurrence. CandleScanner adopted very simple principle. If there is a bullish reversal or a bullish continuation pattern on the chart, the next 5 or 10 candles (depending on the user's preferences) should demonstrate its prognostic value.

The efficiency of a pattern is measured by checking the maximum price (for bullish patterns) or minimum price (for bearish patterns) within test period. CandleScanner is using two periods: 5 or 10 candles following the pattern. Every period is producing a separate result.

Stop Loss order is used to have more realistic results. If Stop Loss level is reached, the algorithm stops and the so far the most extreme price is used to calculate efficiency level.
The user can set Stop Loss level, and ranges for FALSE, LOW, MEDIUM and HIGH efficiency. These settings may have a great impact on the efficiency readings.

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