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Re: FR: Allow to fix the scale of DDs on a chart [Re: Zheka] #483587
06/17/21 15:27
06/17/21 15:27
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Frankfurt
jcl Offline

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Ok, I give up.

Re: FR: Allow to fix the scale of DDs on a chart [Re: Zheka] #483588
06/17/21 15:42
06/17/21 15:42
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Zheka Offline OP
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Zheka  Offline OP
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jcl, c'mon...

On the attached pic, the DD AXIS SCALE is from 0 to -2000....making the drawdowns hardly visible..

I want to be able to set it to be from 0 to -1000...or to -500

Either with existing tools, or with a new feature.





Attached Files DD_axis scale.GIF
Last edited by Zheka; 06/17/21 15:53.
Re: FR: Allow to fix the scale of DDs on a chart [Re: Zheka] #483589
06/17/21 16:08
06/17/21 16:08
Joined: Apr 2008
Posts: 363
Austria
Petra Offline
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If your drawdown is hardly visible because of the large equity range, just don't plot the equity.

https://manual.zorro-project.com/colors.htm

Re: FR: Allow to fix the scale of DDs on a chart [Re: Zheka] #483591
06/17/21 22:44
06/17/21 22:44
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Zheka Offline OP
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Thanks, Petra.

This works, but just a drawdown chart is somewhat unusual to comprehend.

Why not have both looking properly?

Re: FR: Allow to fix the scale of DDs on a chart [Re: Zheka] #483596
06/18/21 06:39
06/18/21 06:39
Joined: Apr 2008
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Austria
Petra Offline
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You heard it, DD is in account money units and has no own "scale".

Re: FR: Allow to fix the scale of DDs on a chart [Re: Zheka] #483597
06/18/21 11:54
06/18/21 11:54
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Zheka Offline OP
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I never asked for "DD's own scale" (or axis)..

Based on a profit number, Zorro somehow sets the right "account money unit scale" from -X to + Y.

And I am asking for a way to set that X myself.

Re: FR: Allow to fix the scale of DDs on a chart [Re: Zheka] #483600
06/19/21 07:58
06/19/21 07:58
Joined: Apr 2008
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Austria
Petra Offline
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X is automatically set so that the chart shows the full range. For what purpose do you want not to see the full range, compared to just not plotting the equity?

Re: FR: Allow to fix the scale of DDs on a chart [Re: Zheka] #483602
06/19/21 12:41
06/19/21 12:41
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Zheka Offline OP
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I do want to see the full range, but current Zorro's definition of the "full range"/automatic scaling is kinda "imperfect"....If Equity range is -450 to +10000 ,why would Zorro have it from -2000?

IMHO, a more practically useful approach would be to add some 20% of each "side" separately, i.e. 20% to the maxDD below and 20% to the equity high above.

Then the right axis range will be from -540 to 12000, all information is clearly visible at a glance and there is no need to waste time commenting/un-commenting ColorEquity=0.


But my original feature request was about the ability to set a hard limit on the displayed DD range, in absolute.

With automatic scaling, gridlines change as well..and gridlines are quite useful to QUICKLY judge e.g. average drawdown or equity development for a certain market period...

Re: FR: Allow to fix the scale of DDs on a chart [Re: Zheka] #483607
06/21/21 08:16
06/21/21 08:16
Joined: Apr 2008
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Austria
Petra Offline
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Hmm if you set the begin to -540 instead of -2000 then the DD would look almost the same. So I do not really understand what you want to achieve.

Maybe you can paint an image to explain what you want and how it should look.



Re: FR: Allow to fix the scale of DDs on a chart [Re: Zheka] #483609
06/21/21 09:49
06/21/21 09:49
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Zheka Offline OP
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I hope it does not look almost the same. When set at -540, it will be discernible better (unlike in the pic above) and gridlines step will be smaller - so it we be possible to judge the average/max level of a dd in a certain period better.

On a second thought, I realize that if maxDD is very small relative to the total eq range, then indeed - as you say - such slight magnification will hardly make a significant difference and ColorEquity=0 is the way to go.

However, in most situations during development the relation is smaller and such suggested automatic scaling will be enough out of the box.

Ideally, the profit and dd should be scaled separately: fixed split of the chart space - 80(profit)/20(dd) , profit axis is from 0 to +(Y+15-20%) , dd axis scale is from 0 to - (X+15-20%)...both will be clearly visible, guaranteed
That's how other trading sw does it.

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