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>From what i see HaOpen calculated in e-signal
uses (open+close)/2
>previous bar and afl formula does it with close
only/2??? I am not
>afl programmer,
No. It is perfectly the same.
It uses:
HAOpen = prev(Haclose)/2 + prev(HAOpen)/2;
This is the way how AMA function works
AMA function works so it implements recursive algorithm.
output = AMA( input, factor )
is equivalent to the following looping code:
for( i = 1; i < BarCount; i++ )
{
output[ i ] = factor[ i ] * input[ i ] + ( 1 - factor[ i ] ) *
output[ i - 1 ];
}
In Heikin-Ashi code you see this:
HaOpen = AMA( Ref( HaClose, -1 ), 0.5 );
So, now replace input with YesterdayHAClose, factor with 0.5 and
output with HAOpen and you will
get:
for( i = 1; i < BarCount; i++ )
{
HaOpen[ i ] = 0.5 * YesterdayHAClose[ i ] + ( 1 - 0.5 ) *
HaOpen[ i - 1 ];
}
Where HAOpen[ i ] is current bar value of HAOpen, and HAOpen[ i - 1 ] is
PREVIOUS bar value of HAOpen.
So it is exactly equivalent to:
HAOpen = AMA( YesterdayHAClose, 0.5 );
And since YEsterdayHAClose is Ref( HAClose, -1 ) we can
write:
HaOpen = AMA( Ref( HaClose, -1 ), 0.5 );
Quod erat demonstrandum.
Best regards,
Tomasz Janeczko
amibroker.com
Hi Tomasz,
Thanks for a reply, woodie from cci club uses
e-signal formula quite
well and we both had IB data with different results
using Heikin
Ashi today.
>From what i see HaOpen calculated in
e-signal uses (open+close)/2
previous bar and afl formula does it with
close only/2??? I am not
afl programmer,
and i don't doubt that afl
language is shorter... but could there be
still difference in results
cause of HaOpen calculations in both?
tia, Ben
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