The CandelCode (CNDL) indicator is based on the article "Coding Candelsticks" published in Technical Analysis of Stocks and Commodities (November 1999) by Viktor Likhovidov.
Two parameters are used to initialize the Bollinger Bands necessary to calculate all required thresholds; the standard deviation number is set to 0.5 with a period of 55.
GT::Indicators::CNDL->new()
GT::Indicators::CNDL->new([55, 0.5])
If you need to find quickly the candel code of a specific pattern, here is a conversion table : /GT/Docs/CandelsticksCodes
http://www.traders.com/Documentation/FEEDbk_docs/Archive/012000/TradersTips/TradersTips.html