Hammer

Figure 2.  The occurrence of Long Black Candle creates a resistance zone that is strengthened by a high trading volume. The bears are stopped however by an Opening White Marubozu. On the next day, the market opens slightly lower than the previous closing price. Market falls even deeper but eventually the bulls were able to retake control, and a Hammer pattern is formed. The disadvantage of its occurrence is a relatively low trading volume.
Now the Hammer, a bullish reversal pattern, has to be confirmed by breaking out of the resistance zone formed by the Long Black Candle two days earlier.
Next two days bring the Hammer confirmation strengthened by the occurrence of Turn Up pattern. Although straight after the market tries to turn down, the support zone formed by the Hammer and the first line of the Turn Up pattern is strong enough. The price moves eventually up.

Figure 3. The first half of the chart presents a clear downtrend. The marked Black Candle occurrence is preceded by a number of black candles formed at a high trading volume, creating a significant resistance zone.
The first instance of Bullish Harami pattern contains a Hammer pattern in its second line. On the next day, the market almost cancelled the bullish signal, but finally another occurrence of Bullish Harami appeared on the chart.
It turns out that the resistance area formed by the Black Candle occurrence is strong, and the market is in a sideways forming a narrow price band between $28.50 and $29.40 (3.16%).
The chart shows the flexibility in searching the patterns. In the first occurrence of Bullish Harami, the first line is a short line, but there should be a long line as it was in the second occurrence of Bullish Harami. In this case, the short line does not differ much from the long line. Therefore, the pattern occurrence was perceived as appropriate, which was confirmed in the next few days.
Please note, however, that it is up to the trader whether he or she wants to treat this pattern as a valid Bullish Harami or not. When using computer algorithms for scanning the candlestick patterns we have to define some strict rules stating the effect on search results of having a short or long line. CandleScanner implemented even a more sophisticated approach: although we see on the chart that we have a short line, we can accept a small deviation and still allow the found pattern to be considered as a correct one. This deviation is a setting in the algorithm of CandleScanner application.