Indicator that draws multiple Moving Averages

It is my first time writing a custom indicator and what I am trying to do is very simple but somehow I am not getting the expected result.

I just want to call the custom indicator "Moving Averages.mq4" a few times with different parameters.

Right now, this is the code I came up with. The Moving Averages are not being drawn right now.



Thank you for any help.


aoeuaoeu

A couple of items.

Putting the code in the init function is not really helpful in this case.

Also, as you want to draw something over a series of data then you will need to use a "for loop".

Also, instead of using icustom why not just use iMA.

so something along this line

//declare inputs
extern int ema1period=12;
extern int ema2period=26;
extern int ema3period=200;
extern int sma1period=26;


//declare global varibales
double ema1[], ema2[],ema3[],sma1[];//declaring them as an array

int init()

{
//put in your index buffer drawing stuff here
}

int start()
{

int counted_bars = IndicatorCounted();
int i, limit;

for (i=0, i<=limit;i++)
{
double ema1[i] = iMA(blah, blah....);
double ema2[i] = iMA(blah, blah....);
double ema3[i] = iMA(blah, blah....);
double sma1[i] = iMA(blah, blah....);
}

// now the values for all the buffers have been calculated.
// I am doing this off the top of my head but remember that you declare variables. Then you have to tell MT4 how you want the calculated variables to be drawn on screen using SetIndexBuffer and setindexstyle.

Then in the start code you actually calculate the values for the various indices.

The biggest hint is to just look at another indicator file in Editor and follow the concept. Also, there are some great tutorials out there.

Thank you for the reply. I understand your solution.


However, I'm not sure I understand why all this work is needed since "Moving Averages.mq4" is already doing it all nicely. Isn't there a simple way to put a few function calls in a script (like a matlab/python/batch/whatever script)?

I guess that basically what I'm looking for is an interpreter that would just load a file and execute the lines one by one. Does that exist in mt4?



Thank you.

aoeuaoeu

just use the expert advisor builder for metatrader 4
http://sufx.core.t3-ism.net/ExpertAdvisorBuilder/

cheers