[amibroker] Heikin-Ashi code modification as per e-signal help needed:

["nebt1" <nebt1@xxxxxxxxx>]

Hi e-signal using somewhat different code for Heikin-Ashi then 
presently
available AmiBroker code for it. Chart comes out different as well 
on e-signal Heikin-Ashi.
Here is the code and explanations from e-signal by Dan Valcu:
     http://r7.com/ashi.htm

CALCULATION

The heikin-ashi candlestick technique uses modified open-high-low-
close (OHLC) values and displays them as candlesticks. The modified 
values are computed using these definitions:

  # haClose = (O+H+L+C)/4
  # haOpen = (haOpen (previous bar) + haClose (previous bar))/2
  # haHigh = Maximum(H, haOpen, haClose)
  # haLow = Minimum(L, haOpen, haClose)

The "open," "high," "low," and "close" referred to are of the 
current bar. The prefix ha- indicates the corresponding heikin-ashi 
modified values. I have used daily data throughout this article, so 
one bar represents one trading day. Depending on the trading time 
frame, you may employ other data, such as intraday, weekly, or 
monthly.

The value haOpen is always set to the midpoint of the body of the 
previous bar, while haClose is computed as the average price of the 
current bar. The modified high, haHigh, is chosen as the highest 
value of the set {real high (H), modified open (haOpen), and 
modified close (haClose)}. The same logic applies to the definition 
of the modified low: It is the lowest value in the set {real low 
(L), modified open (haOpen), and modified close (haClose)}. 
======
AmiBroker code that I presently have is as follows:

_SECTION_BEGIN("Haikin Ashi");
HaClose = (O+H+L+C)/4;
HaOpen = AMA( Ref( HaClose, -1 ), 0.5 );
HaHigh = Max( H, Max( HaClose, HaOpen ) );
HaLow = Min( L, Min( HaClose, HaOpen ) );

PlotOHLC( HaOpen, HaHigh, HaLow, HaClose, "Modified " + Name(), 
colorBlack, styleCandle );
_SECTION_END();
======
Please, someone, translate that e-signal code into AFL AmiBroker.
tia, Ben






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