confusing in backtest

[masoodbabagoli]

hi everyone

i had wrote a EA in mt5(mql5), that my codes include ZigZag indicator#

so when i perform strategy tester and run backtest when the display mode is active the graph and result are good, but when it is disable the graph goes down and result is bad !!!

where is the problem?

please help me , thanks

[Conor Mcnamara]

Sorry but that's the reality of your EA in the longterm period. 

The first 20 trades can be wins, and then it starts losing. Welcome to the painful world of making a profitable EA! The graph is providing the truth of the backtest, as well as the backtest information.

[Stanislav Korotky]

masoodbabagoli:

i had wrote a EA in mt5(mql5), that my codes include ZigZag indicator#

so when i perform strategy tester and run backtest when the display mode is active the graph and result are good, but when it is disable the graph goes down and result is bad !!!

where is the problem?

Here is one possible reason - https://www.mql5.com/en/book/applications/indicators_make/indicators_test:

In the tester the indicators are calculated on each tick under any of the following conditions:

• In visual mode
• If there is the tester_everytick_calculate directive
• If they have the EventChartCustom call or the OnChartEvent or OnTimer functions

The indicator developer should pay attention to the fact that without visualization, the tester uses an accelerated calculation method for indicators called from Expert Advisors. The data is not calculated at every tick, but only when the relevant data is requested from indicator buffers (see the CopyBuffer function).

[Conor Mcnamara]

Stanislav Korotky #:

In the tester the indicators are calculated on each tick under any of the following conditions:

• In visual mode
• If there is the tester_everytick_calculate directive
• If they have the EventChartCustom call or the OnChartEvent or OnTimer functions

The indicator developer should pay attention to the fact that without visualization, the tester uses an accelerated calculation method for indicators called from Expert Advisors. The data is not calculated at every tick, but only when the relevant data is requested from indicator buffers (see the CopyBuffer function).

I would like to find this text ^ in the book, but I couldn't find it at the link provided

[masoodbabagoli]

Stanislav Korotky #:

Here is one possible reason - https://www.mql5.com/en/book/applications/indicators_make/indicators_test:

the link that you mentioned does not exist

and one other thing when i run back test with visual mode enable it takes a lot of time

please help me

[masoodbabagoli]

Conor Mcnamara #:

Sorry but that's the reality of your EA in the longterm period. 

The first 20 trades can be wins, and then it starts losing. Welcome to the painful world of making a profitable EA! The graph is providing the truth of the backtest, as well as the backtest information.

i know that making profitable EA is hard ,you do not understand what i said

[Conor Mcnamara]

masoodbabagoli #:
i know that making profitable EA is hard ,you do not understand what i said

Then rewrite your post, or nobody will understand what you're saying.

This is what I got from your post:

"When visual mode is enabled, the results are good. When visual mode is disabled, the results are bad as seen on the graph"

[masoodbabagoli]

Conor Mcnamara #:

Then rewrite your post, or nobody will understand what you're saying.

This is what I got from your post:

"When visual mode is enabled, the results are good. When visual mode is disabled, the results are bad as seen on the graph"

So what the hell is "display mode" what are you talking about then?

Btw, there is no graph to be seen when running it on visual mode.

i mean visual mode as display mode

[Stanislav Korotky]

masoodbabagoli #:

the link that you mentioned does not exist

There is a problem with formatting of inline link in that post (I don't know why) - unfortunately I can't edit posts - ask moderators.

But the same link with proper formatting is provided in a dedicated box at the bottom of that same post, like this - https://www.mql5.com/en/book/applications/indicators_make/indicators_test

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[Stanislav Korotky]

Conor Mcnamara #:

I would like to find this text ^ in the book, but I couldn't find it at the link provided

Please, start to read from the beginning and the quoted fragments will appear among first 10 paragraphs.

[Chi Hong Au Yeung]

masoodbabagoli #:

the link that you mentioned does not exist

and one other thing when i run back test with visual mode enable it takes a lot of time

please help me

there's a button you can drag left and right to speedup the backtest process mate, rather thn that generally nothing else can help you speedup the time.