Metatrader help needed

hi all,

I am new to trading and also to this software. Can anyone tell me if its possible to create a graph of difference between two indices? For example if i am getting live data for two exchange indices say X and Y, can i plot realtime graph of X-Y through some function.

I would really appreciate any help on this.

thanks

it´s not exactly what you were asking for, but maybe it helps:

Corelation - MQL4 Code Base

actually i am planning to do spread trading between two indices, so need that kind of graph to see how their difference is moving and whether thay are mean reverting or not. So if anyone know if its possible to make that kind of graph, it would be helpful.

I have seen it with one of my friends who is a professional trader and trades using future source. don't know it can be made here.

got what i was looking for in one of the past threads