iMAOnArray problem

[[Deleted]]

Hi everyone,

I experience problems while using iMAOnArray, so I isolated the problem.

If I do that inside the init() method of an indicator, this works :

int init()
{
 ...
 double t[10];
 for (int i = 0; i < 5; i++)  t[i] = i;
   Print("ma = " + iMAOnArray(t, 3, 3, 0, MODE_SMA, 0));
}

But if I use a global array :

...
double t[];
...
 
int init()
{
  IndicatorBuffers(2); // To set this array as an extra one
  ...
  SetIndexBuffer(1, t);
  ...
 
 for (int i = 0; i < 5; i++)
    t[i] = i;
 Print("ma = " + iMAOnArray(t, 3, 3, 0, MODE_SMA, 0));
}

then it won't work, and the iMAOnArray function always returns 0... I precise I already have an array declared to store the indicator data, "t" is the second.
Is there a problem with the declaration of t ?


Thanks in advance,
Mark

[Slava]

Note that your index buffer is like series array ie indexed from right to left. And iMAOnArray calculates from left to right. This problem was discussed on this forum

[[Deleted]]

Hi stringo,

Well, of course I heard about that difference of indexation in the MQL4 manual. But I don't see what the problem is : I'm filling the array from 0 to 5, hence from left to right !
I've tried to call ArraySetAsSeries(t, false); just before the loop but it didn't work better.
Please, if you understood the problem, could you tell me how to solve it ?

Thanks,
Mark