I agree with Frederick and he's simply saying don't ignore the other variables that's causing the price action in a way that you're putting the emphasis only on the single candlestick interval.
Too any people ignore the other reasons including the context involved in the price action and exclusively trade Japanese Candlestick single intervals as if they are "patterns". Also, these are the people that tend to try to code/program Japanese Candlestick Analysis...they concentrate on the single interval analysis...much easier to test in their mind.
Single intervals are not "patterns" nor do they represent the context of the price action.
Yet, I do understand the effort of why many traders try to do such (single interval analysis) under the keep it simple theme but that's exactly why most do poorly with Japanese Candlestick Analsysis.
wrbtrader