Expanding top or bottom

An indicator of patterns #1 and #4 ("Broadening Tops" and "Broadening Bottoms") from Encyclopedia of Chart Patterns by Thomas N. Bulkowski.  

Version 1: bottom, top, bottom, top, top breakout. Version 2: top, bottom, top, bottom, top breakout.

Parameters:

• alerts - show alert when an arrow appears  
• Push - send a push notification when an arrow appears (requires configuration in the terminal)
• Variant1 - show version 1 of the pattern
• Variant2 - show version 2 of the pattern
• PeriodBars - indicator period
• K - an additional parameter that influences the accuracy of pattern shape recognition. The smaller the value is, the smoother the row of peaks/valleys should be, so fewer patterns will be recognized
• ArrowType - a symbol from 1 to 17
• ArrowVShift - vertical shift of arrows in points  
• ShowLevels - show levels
• ColUp - color of arrow up
• СolDn - color of arrow down  
• Auto5Digits - automatic multiplication of ArrowVShift by 10 when working with 5 and 3 digit quotes.

Note. Arrows appear on a forming bar and do not disappear.

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