What RefreshRates() updates - page 10
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What's kizyak? A Buryat folk dish?)
Why make up a cache of two minutes. It's simple - if you need to access the tf every 5 minutes, two minutes is enough. If every minute, then 20-30 seconds, etc.
No. If every minute, then you don't need additional reference to the timeseries - it's up to date as it is.
Have you ever wondered why data needs to be accessed at a certain frequency?
Renat has often mentioned that data is cached before it is given to the user.
That is, as I understand it, when calling any function for data, we are requesting the stored data from the cache, not from the server.
Roman, the topic keeps talking about time-series, aren't they the cache? You can draw them on the chart, you can give them to the Expert Advisor on request. Different words mean the same thing.
No. If it's every minute, there's no need to refer to the timesheets additionally - they're up to date as it is.
Yes, you're right, that was exaggerated. Haven't tried it, but I think even if the timeseries (not open) is accessed every 3-5 minutes, it will still be up to date.
Yes, you're right, that was exaggerated. Haven't tried it, but I think even if a minute (not open) is accessed every 3-5 minutes, it will still be updated.
At least once every two minutes. Once every 3-5 minutes is less frequent. I usually set the timeseries to be accessed after 90 seconds. You can use any function that calls the synchronization process. But we should always remember - in indicators we should not request synchronization from the timeseries, which coincides with the current chart symbol and its period - it can lead to a clincher. It's written in the help. It means that only "non-native" symbols/periods should be kept in the indicators up to date by addressing them through the functions that call the synchronization process. iTime() for example.
But you should always remember - in indicators you cannot request synchronization from the timeseries, which coincides with the current chart symbol and its period - it can lead to a wedge. It's written in the help.
Specify what do you mean by synchronization? In MQL4, synchronization is possible only by accessing i-functions. Based on what you've said, it turns out that it cannot be used:
But such a reference is used all the time.
What do you mean by synchronization? In MQL4, synchronization is possible only by accessing i-functions. Based on what you've said, it turns out that it cannot be used:
But this kind of treatment is used all the time.
I'm talking about mql5 and only about indicators. In the indicators of mql5, for the current symbol/period of the chart there is ready-made data in OnCalculate() - you know it. For the other symbols/periods - receiving data through functions. And it works crossplatform. I don't know about the cleavage in mql4 - I probably haven't opened the quadruple. But identical constructs work the same way in mql5 and mql4. Therefore, one can use recommendations for mql5 and for quadruple without "consequences".
I am talking about mql5
A topic in the MQL4 forum
Topic in MQL4 forum
I am talking about mql5 and only about indicators. For indicators in mql5, for the current symbol/period of a chart there is the ready data in OnCalculate() - you know it yourself. For the other symbols/periods - receiving data through functions. And it works crossplatform. I don't know about the clearing in mql4 - I probably haven't opened the quadruple. But identical constructs work the same way in mql5 and mql4. Therefore, one can use recommendations for mql5 and for quadruple without "consequences".
The principle of data synchronization in MQL4 (where there is no official synchronization at all) and MQL5 is different. What are the same constructs we are talking about?