Back to basics

 
I'm creating an MT4 EA that uses the RSI to take profit.

The simple question is:
On the chart that I install the EA on, must I have the RSI on the chart?

Many thanks
 
Rogh:
I'm creating an MT4 EA that uses the RSI to take profit.

The simple question is:
On the chart that I install the EA on, must I have the RSI on the chart?

Many thanks
Nope,  you can use iRSI()