ZigZag - maximum number of bars it can repaint?
You can't say depends on how many bars it keeps trending up or down
In this picture zigzag
5 brown
13 mediumVioletRed
34 yellow the arrows are repainted values colors are showing also the period of the repainted zigzag
The other indicator shows highest/lowest value for period 13 and 34
The moment the high is not repainted again is the moment it touch the periods low.....
It repaints everytime a last high or low is breached. Check this out, at least repaints are limited to fractals.
That is what I suspected - thank you both for confirming it.
I think I shall try to re-write the default indicator to limit the number of bars back beyond which it can repaint, if I can decipher the sprawling code.
When I fail at that, I will go on to using the fractals filter, thanks!
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Does anyone know if there is a maximum number of bars beyond which the default MT4 ZigZag indicator will not re-paint?
After spending a full day trying to understand the code for calculating ZigZag, and reading all the posts I can find, I think I am right in saying that the default MT4 indicator can re-paint based upon the PERCENTAGE change in recent price movements ....
... but does anyone know if this ever translates into a known maximum number of BARS beyond which it will never re-paint?
I'm guessing it might be related to the "ExtBackstep" external variable, which is set to 3 by default, suggesting that the maximum is 3 bars - but I can't understand the code well enough to say for certain!
(I'm not looking for a version of ZigZag which doesn't repaint - I already have one. I'm just trying to understand whether there is a "safe point" with the default indicator.)
Thanks.