How would I go about getting data from the default custom indicator "ZigZag" in my expert advisor? I know how to use the iCustom function, but don't know what to use for the last 3 variables.

Any help would be greatly appreciated.

the last patameter to iCustom is the bar shift, the one before it is the indicator buffer (starting from 0).
Before the last 2 parameters (that I just describe, u enter the values of all the extern values of the indicator. In your case look at the indicator and find the lines
//---- indicator parameters
extern int ExtDepth=12;
extern int ExtDeviation=5;
extern int ExtBackstep=3;
//---- indicator buffers
double ExtMapBuffer[];
double ExtMapBuffer2[];


as u can see there are 3 values and 2 buffers.

the line of code should look like:

double zzUpper = iCustome(NULL,0,"ZigZag",12,5,3,0,0); // from 1st buffer
double zzLower = iCustome(NULL,0,"ZigZag",12,5,3,1,0); // from 2nd buffer

Most of the values will be 0 (when there is no zigzag value)

Hope it will help you

Eli

Thanks for your help!

I have gotten my expert advisor to output data from the indicator, but am having trouble making sense of it. It usually outputs 0 for both upper and lower, but sometimes it displays a value (i.e. 1.3423) for the upper and occasionaly the lower. When does it output data? What is the diffrence beetween upper and lower?

ZigZag is a serial of upper and lower values. If u see a line from one price to another, then in the indicator you will get the lower price in the "lowpricebuffer" and the higher price in the "highpricebuffer" . So, between the low and high u get zeros.

Hi,

I want to code an EA based on the Zigzag indicator. So if I want to know the last high or the last low, then I can simply create a loop, increasing the shift, and stop as soon as I get a value? Is that right?

What do the ZigzagBuffer, HighMapBuffer and LowMapBuffer contain? in the example above, mode should be 1 and 2 instead of 0 and 1 for the mode, no?

cheers,
Daniel

Please somebody who knows the code for it, simply post the code for the usage of ZigZag to find last 6 values of ZigZag custom indicator. I think it will be interesting to many. 6 because we ignore the last value (it is being redrawn) and need 2 last highs and 2 last lows. 6-th value just in case.

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MQL4 programming is easy ^^

int n, i;
double zag, zig;
i=0;
while(n<2)
{
if(zig>0) zag=zig;
zig=iCustom(NULL, 0, "ZigZag", 0, i);
if(zig>0) n+=1;
i++;
}now you have two numbers zig -- last value and zag -- value before that
if(zag>zig) indicator shows down
if(zig>zag) indicator shows up

Hey There,

I to am trying to find someone to help me build an EA with a non-lagging zig-zag indicator & a zig-zag pointer.

I have been using them manually with pretty good results.

The can be used on short term charts but are way better on 4 hour or higher.

I can show you how its works if you are interested.

Any reply would be greatly appreciated.


Bear-

I`ve been always a fan of Zig Zag indicators can you pls share Non lagging Zig Zag indicator. Thx.

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