Unable to get Calendar(CalendarValueHistory ) even in back-testing

[Bharathi M]

Dear Team,

I have wrote one Algo module to trade automatically based on the news events(https://www.mql5.com/en/economic-calendar),  but if I use the  CalendarValueHistory function in back-testing I am getting 4014 error.  

in back-testing, I am trying to fetch older date news even. for that I am getting 4014 error. please find the code below.

convertedTime  = Older date assigned. e.g: 01-Jan-2023

convertedTime2  = Older date assigned. e.g: 01-Jan-2023

events_count=CalendarValueHistory(values,convertedTime ,convertedTime2,NULL,"USD")

kindly do the needful. thanks. 

[Dominik Egert]

Bharathi M:

Dear Team,

I have wrote one Algo module to trade automatically based on the news events(https://www.mql5.com/en/economic-calendar),  but if I use the  CalendarValueHistory function in back-testing I am getting 4014 error.  

in back-testing, I am trying to fetch older date news even. for that I am getting 4014 error. please find the code below.

convertedTime  = Older date assigned. e.g: 01-Jan-2023

convertedTime2  = Older date assigned. e.g: 01-Jan-2023

events_count=CalendarValueHistory(values,convertedTime ,convertedTime2,NULL,"USD")

kindly do the needful. thanks. 

Calendar data is not available in Backtest. Only live you can request data. The reason is simple. There is no GMT Offset available in Backtesting.

It's a time problem. Time in backtest is all flat to GMT, you do not have valid times available. But news events are synced to your brokers time and chart, this is missing in Backtesting, therefore you cannot sync the events to the correct timing automatically. And since calendar is already corrected to chart time, there will be an offset to the times in Backtest.

Only solution is to create or use a different news database or source. And you will need to implement some time sync function and input to correct the misalignment of event times to chart time.

[Bharathi M]

Dominik Christian Egert

Thank you so much for neat explanation. 

[Zaky Hamdoun]

Bharathi M #:

Dominik Christian Egert

Thank you so much for neat explanation. 

Have a look at that video (in French, but you can activate automatic English subtitles), that explains how to access calendar during backtests.

https://youtu.be/jQIkz1rW1y4

[Alain Verleyen]

Bharathi M:

Dear Team,

I have wrote one Algo module to trade automatically based on the news events(https://www.mql5.com/en/economic-calendar),  but if I use the  CalendarValueHistory function in back-testing I am getting 4014 error.  

in back-testing, I am trying to fetch older date news even. for that I am getting 4014 error. please find the code below.

convertedTime  = Older date assigned. e.g: 01-Jan-2023

convertedTime2  = Older date assigned. e.g: 01-Jan-2023

events_count=CalendarValueHistory(values,convertedTime ,convertedTime2,NULL,"USD")

kindly do the needful. thanks. 

https://www.mql5.com/en/forum/326554