Horn shaped top or bottom

An indicator of patterns #28 and #29 ("Horn bottoms" and "Horn tops") from Encyclopedia of Chart Patterns by Thomas N. Bulkowski.

Parameters:

• alerts - show alert when an arrow appears  
• Push - send a push notification when an arrow appears (requires configuration in the terminal)
• BarsInsideFrom - minimum number of bars between the tops
• BarsInsideAdd - the number of bars between the tops can be in the range from BarsInsideFrom to
• BarsInsideFrom+BarsInsideAdd-1. If the value is -1, the number of bars can be any no less than BarsInsideFrom
• K1 - an additional parameter that influences the accuracy of pattern shape recognition
• K2 - an additional parameter that influences the accuracy of pattern shape recognition
• ArrowType - a symbol from 1 to 17
• ArrowVShift - vertical shift of arrows in points  
• Auto5Digits - automatic multiplication of ArrowVShift by 10 when working with 5 and 3 digit quotes.

Note. Arrows appear on a forming bar and can disappear during bar formation. Notification (alerts and Push) are generated based on a formed bar.

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