Is there any other way of reading buffers? - page 2

[Marco vd Heijden]

Tonny Obare:

So as long as you include 10 inputs in iCustom it will work okay?

If your default parameters are okay then you should be able to make the call without passing any but i can imagine that if you want to override the 150th parameter it could get a bit of a problem.

[Drazen Penic]

Tonny Obare:

So as long as you include 10 inputs in iCustom it will work okay?

You can include as many as you want, but they will be copied in order they are declared in the indicator.

If you add 10, 20, or 50 parameters to the iCustom call, they will be copied to the first 10, 20 or 50 input values of the indicator.

BTW, I don't know if there is any limit to the number of arguments in the MQL4 function call. 

[William Roeder]

1. Tonny Obare: The indicator has 300 user input variables which will have to be included …
   

   As Drazen (#8) already explained, you can pass zero and default all, or pass 10 and default the rest, etc. You do not have to pass all of them.

2. Drazen Penic: You can include as many as you want, 

   The maximum arguments in iCustom is 63. Maximum inputs in the tester is 1024.
             Does anyone know if there is a limit on number of inputs allowed in EA? - MQL5 programming forum 2020.05.06

[Tonny Obare]

Marco vd Heijden:

If your default parameters are okay then you should be able to make the call without passing any but i can imagine that if you want to override the 150th parameter it could get a bit of a problem.

Yes

[Tonny Obare]

William Roeder:

1. As Drazen (#8) already explained, you can pass zero and default all, or pass 10 and default the rest, etc. You do not have to pass all of them.

2. The maximum arguments in iCustom is 63. Maximum inputs in the tester is 1024.
             Does anyone know if there is a limit on number of inputs allowed in EA? - MQL5 programming forum 2020.05.06

Thanks for this info. Seems the best way is to just have the calculations in the  EA.

[Alain Verleyen]

Tonny Obare:

Thanks for this info. Seems the best way is to just have the calculations in the  EA.

That's rarely a good idea. It's a false assumption that including the code in the EA will improve performance.

About parameters, you need to sort your indicators parameters to put the relevant ones at the top. Then as explained by Drazen, set the values of the ones that matters and let the other one with default values.

[Marco vd Heijden]

It's perfectly fine to incorporate the calculation directly into an EA.

Especially when you do not need the visual representation on the chart but only the result of the formula over the last n bars.

You can do that without using any indicator at all and it's completely unnecessary to use iCustom calls. 

[Alain Verleyen]

Marco vd Heijden:

It's perfectly fine to incorporate the calculation directly into an EA.

Especially when you do not need the visual representation on the chart but only the result of the formula over the last X bars.

You can do that without using any indicator at all and it's completely unnecessary to use iCustom calls. 

It's a waste of time and made things more complicated for 0 benefit. (In most cases, there can also have exceptions).

[Marco vd Heijden]

Alain Verleyen:
It's a waste of time and made things more complicated for 0 benefit.

That would depend on the application.

There are always drawbacks and benefits and sometimes it's not possible to call for an indicator because it isn't available on the target system.

And i disagree that it is a waste of time because by working with complex matters you gain understanding and knowledge is power.

[nicholish en]

Alain Verleyen:
It's a waste of time and made things more complicated for 0 benefit. (In most cases, there can also have exceptions).

I think when you include the code with the EA the IND is calculated using the same thread as the EA. I make that assumption because the EA is way slower when you bake in indicator code.