MACD: How To keep Zero Line

hi,

I have a small question: maybe some programmer know.

How does one keep the 0 Line in the display of a customary MACD indicator.

The attached picture should explain it a bit better:

1.
Subwindow uses MT4's example MACD (attached at the end)

One can see at certain times the 0 line moves out of the display. ( to about 0.00059)

2.
Subwindow uses the MT4 default MACD: it keeps always the 0 line in the display.



Does anyone know how to add such functionality to the example MACD so that the 0 line keeps always in the display.



Thanks a lot.

Via MT4 GUI

 

1. Open indicator parameter dialog:
   CTRL-I -> Select Indicator -> Click Edit
2. Select Common Tab
   Check and set 'Fixed Maximum' & 'Fixed Minimum' values
3. Select Levels Tab
   Add any levels you may want drawn

Programmatically:
#property indicator_maximum 1
#property indicator_minimum -1

#property indicator_level1 0
#property indicator_levelcolor DimGray

http://docs.mql4.com/basis/preprosessor/compilation

hey mj.... xaphod's suggestions should work perfect.......

noticed your indicator thread so reasonably sure your handy with code...... you can also just set a zero buffer..... the value can be hard coded or an extern input.....

example below......h

Thanks guys.

hayseed - thanks too. I had thought about that yesterday night too

Seems it is the better solution as setting the

#property indicator_maximum 1
#property indicator_minimum -1

makes the histogram way too small to be useful.

But thanks anyway.

The values 1 and -1 are for illustrative purposes. You can set them to whatever you want/need.

Anyone knows how to set/adjust the max/min values of a subwindow so that all data are always shown.

dynamically within a indicator program: start()


I'm asking because even the Default built-in MT4 MACD sometimes is outside of the subwindow:

Can be seen at the attached pic: where the MACD histogram value is: -0.000870

but the display does not show all.

You can use the method hayseed suggested to set the high and low of the window.

use:
WindowBarsPerChart() to get the bars visible
iHighest() & iLowest() to get the High/Low
Add a suitable value for additional space up and down
Set the buffers to the calculated values.
The buffer have color=CLR_NONE to make them invisible.

Thanks to all for your help.

Maybe just what I did in the end:

1.
Use additional dummy Buffer for ZERO Line


2.
Problem of post 8:

as well Additional Buffer to keep it within the max/min subwindow space:
I added/ subtracted some percentage of the histogram for this buffer which I use as dummy


Some indies are at: http://www.forexfactory.com/showthread.php?t=285687