EA's must be coded to recover. If the power fails, OS crashes, terminal or chart
is accidentally closed, on the next tick, any static/global ticket variables
will have been lost. You will have an open order but don't know it, so the EA
will never try to close it, trail SL, etc. How are you going to recover? Use a
OrderSelect
loop to recover, or persistent storage (GV+flush or files) of ticket numbers
required.
Is there a disadvantage in backtesting speed if I write (and read) in files? To use globals I think will not work because they are resetted after a reboot. Or do you think that I use globals and write this globals also to file?
Maybe you might click on the topic links to read about it ?
Global variables are kept in the client terminal for 4 weeks since the last access, then they will be deleted automatically.
And yes if you use filewrite there will be a loss is testing speed, how much will depend on how often you read and save the new values, as well as on the hardware you are using.
i had a look at the links but read it not in detail.
I would run the EA on my PC at home and not at the client. I think I have to write in files.
mtsTrader: Is there a disadvantage in backtesting speed if I write (and read) in files? To use globals I think will not work because they are resetted after a reboot. Or do you think that I use globals and write this globals also to file?
|
|
You are missing trading opportunities:
- Free trading apps
- Over 8,000 signals for copying
- Economic news for exploring financial markets
Registration
Log in
You agree to website policy and terms of use
If you do not have an account, please register
Hello,
I'm currently programming an EA and want to implement a trailing-StopLoss. If an order is open the SL is calculated for the current bar and plotted on the chart. The SL is to be recalculated for the following bars. If the price is exceeded or undershot, the order should be closed. How is this when the Internet connection is broken or a restart of the computer is necessary? How do I do that the SLs are still displayed after a reboot of the computer or a reconnect of internetconnection? The special feature when calculating the SL values is that they are dependent on the account balance. A new calculation of all SL values after a reconnect is therefore difficult I think.