Fisher for NT7

January 31st, 2011, 07:57 AM

The default Fisher Transform with settings 100 matches exactly with what Fat tails got here in post 17. FisherYur5ik.zip
so we got the same as NT and not anythng diff. chart attached

January 31st, 2011, 08:28 AM

trendisyourfriend

Fat, if you don't know the MetaTrader language then how can we tell if this indicator does what it is supposed to do ? What have you translated exactly ? Is it based on the Fisher algo or something else ?

I have tried to translate the MetaTrader language into NT 7.0. Most of the formulae can be easily grasped, but I do not know the logic MetaTrader uses for calling bars.

As I do not have a MetaTrader installation, we need somebody who posts a MetaTrader chart of the indicator, so that we can compare it with a NinjaTrader chart.

January 31st, 2011, 09:00 AM

Fat Tails has done a great job in making it work for Ninja, so thanks Fat Tails!!!

1. The Metatrader version of the FisherTransform paints BIG TIME
2. Fat Tails, FisherYur4ik repaints the same as Metatrader version
3. Fat Tails, FisherYur5ik DOES not repaint and it looks to be same as FisherTransform (NinjaTrader version)
4. If you download the FisherTransform for Metatrader that does NOT repaint, it will not give you any advantage at all. You may as well look at FisherTransform (NinjaTrader version)

Thanks guys

January 31st, 2011, 09:07 AM

emini_Holy_Grail

The default Fisher Transform with settings 100 matches exactly with what Fat tails got here in post 17. FisherYur5ik.zip
so we got the same as NT and not anythng diff. chart attached

This is really a good example to learn from.

The original MetaTrader indicator and the NT 6.5. version of this indicator heavily repaint. This means that the bars are faked with hindsight. You cannot trade off fake indicators. because they only generate the signal long after the fact.

On the chart below I have put

- the fake indicator
- the adapted version that does not repaint
- and the original Fisher Transform that comes with NinjaTrader

You will notice that the FisherYur4ik generates early signals. Unfortunately the early signal is only generated 100 bars later by falsifying what it had produced before. Actually the indicator will still modify the signal shown on the chart, as the 100 bars have not yet elapsed.

The non-repainting version generates the same signals, but later. You can see that the peaks and troughs are occurring between 5 and 8 bars later. Note that the further you get away from the last bar the larger the lead of the repainting indicator versus the correct one will be.

If you do not let the indicator repaint, it does not offer any advantages over the original Fisher Transform, which can be found below. The only thing that the FisherYur4ik offers is a mirage which can be used for self-delusion.

I am still not 100% sure that the non-repainting version is a correct adaptation of the MetaTrader indicator.

If there is any user of MetaTrader here please post a chart!

January 31st, 2011, 09:14 AM

This might be of interest

Three Fisher Yur4ik Indicators For Metatrader | Great Trading Systems

January 31st, 2011, 09:29 AM

tellytub

This might be of interest

Three Fisher Yur4ik Indicators For Metatrader | Great Trading Systems

The charts show a 4-bar lag between the repainting and non-repainting version. As I used a comparatively large lookback period of 100 bars in the chart above, this is consistent with the 5 to 8 bars that I found. Thanks for posting!

January 31st, 2011, 09:35 AM

I remember when i was using this tool i used to have two instances of the Fisher on my chart. A 10 periods and a 50 periods. Both versions needed to match. I used them mostly for confirmation during a pullback after a breakout. At that time, i was using 3 MA's (21, 34 or 55 and 89) When there was some separation between these three MA's and price was breaking in the opposite direction of the trend by two or three bars max. then i was checking the Fishers on a pullback and would enter into the new direction only if both Fishers were showing the same color. My winning rate on this setup was above 85% if i remember and i was using the version that was repainting.

Here is a rough example:

January 31st, 2011, 09:42 AM

MetaTrader has EURUSD whereas Ninja has 6E, but its almost there

this is a better res image

I'm sure you can guess which one repaints

February 1st, 2011, 09:17 PM

FT or TIYF
Can you help to add an arrow when cross over on NT's default Fisher Transform.
or you can tell me where to add "DrawArrowUp and Down". appreciate the help

February 2nd, 2011, 06:47 AM

emini_Holy_Grail

FT or TIYF
Can you help to add an arrow when cross over on NT's default Fisher Transform.
or you can tell me where to add "DrawArrowUp and Down". appreciate the help

So what you want to do - in language terms - is:

Condition1: when current value > 0 and prior value <= 0 then bullish crossover
Condition2: when current value < 0 and prior value >= 0 then bearish crossover

Translated to code:

Code

double lastFishValue = Value[1];
double margin = 2* ATR(14)[0];
if (fishValue > 0 && lastFishValue <=0)
	DrawArrowUp("Up"+CurrentBar,true, 0, Low[0]- margin, Color.Green);				
if (fishValue < 0 && lastFishValue >= 0)
	DrawArrowUp("Up"+CurrentBar,true, 0, High[0]+ margin, Color.Red);

Now this code will run you into trouble for two reasons:

(1) Value[1] is not defined for the first bar -> indicator will not display anything
(2) If the crossover is triggered intrabar (when connected realtime) and then cancelled again, the arrow will remain on the chart, so you need to remove all the false arrows that have been created prior to the bar close.

Declare new int variables:

Code

private int	arrowUpIndex 	= 0;
private int 	arrowDownIndex	= 0;

Then write modified code and insert:

Code

if (CurrentBar > 0) // to avoid the problem with the first bar
{
	double lastFishValue = Value[1];
	double margin = 2* ATR(14)[0];
	if (fishValue > 0 && lastFishValue <=0)
	{
		DrawArrowUp("Up"+CurrentBar,true, 0, Low[0]- margin, Color.Green);
		arrowUpIndex = CurrentBar;
	}
	else if (arrowUpIndex == CurrentBar)
	{
		RemoveDrawObject ("Up"+CurrentBar);
		arrowUpIndex = 0;
	}
	if (fishValue < 0 && lastFishValue >= 0)
	{
		DrawArrowDown("Down"+CurrentBar,true, 0, High[0]+ margin, Color.Red);
		arrowDownIndex = CurrentBar;	
	}
	else if (arrowDownIndex == CurrentBar)
	{
		RemoveDrawObject ("Down" + CurrentBar);
		arrowDownIndex = 0;
	}
}

Now to finish the indicator off, put this in the Initialize section to make sure that the arrows are plotted on the price panel

Code

DrawOnPricePanel	= true;

Indicator attached.

Fisher for NT7

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Fisher for NT7