Must the indicator appear when running an EA?

[Michael Mureithi Mbugua]

I have an EA that uses zigzag. When testing it out in the strategy tester, the zigzag lines appear so I can watch what is happening. However, when I load the EA on to the charts, the zigzag lines do not appear. Are they supposed to appear?

[William Roeder]

EAs have no eyes; they don't need to see it on the chart. If you want to see it, add it to the chart.

[Michael Mureithi Mbugua]

William Roeder:
EAs have no eyes; they don't need to see it on the chart. If you want to see it, add it to the chart.

Thanks.

Follow up question: Can a custom indicator be designed to calculate variables of the datetime type? For example, to plot lines in the future?

[Keith Watford]

Murray Mbugua:

Thanks.

Follow up question: Can a custom indicator be designed to calculate variables of the datetime type? For example, to plot lines in the future?

It can draw objects in the future but not buffers.

[Michael Mureithi Mbugua]

Keith Watford:

It can draw objects in the future but not buffers.

Okay. Thanks. I didn't want to start creating it without the green light. Let me get to it. If I have any question I will post it here.

[William Roeder]

Keith Watford: … but not buffers.

Buffers can be, just use a positive shift with SetIndexShift.

#define SHIFT 1
⋮
while(iBar >= -SHIFT){
   ⋮
   buffer[iBar+SHIFT] = …;
}