文章 "DoEasy 函数库中的时间序列（第三十七部分）：时间序列集合 - 按品种和周期的时间序列数据库"

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新文章 DoEasy 函数库中的时间序列（第三十七部分）：时间序列集合 - 按品种和周期的时间序列数据库已发布：

本文探讨开发针对程序中所有品种指定时间帧的时间序列集合。 我们将开发时间序列集合，为集合设置时间序列参数的方法，以及取用历史数据初始填充已开发的时间序列。

这些就是测试 EA 的所有改进。
编译并启动它，在参数中指定当前所用的品种和时间帧。
日志中显示以下消息l:

--- Initializing "DoEasy" library ---
Working with the current symbol only: "EURUSD"
Working with the current timeframe only: H4
EURUSD symbol timeseries: 
Timeseries "EURUSD" H4: Requested: 1000, Actual: 1000, Created: 1000, On the server: 5330
Library initialization time: 00:00:00.141

配置采用当前品种和设置中的指定时间帧列表（该列表含有主要时间帧）。
日志中显示以下消息：

--- Initializing "DoEasy" library ---
Working with the current symbol only: "EURUSD"
Working with the specified timeframe list:
"M1"  "M5"  "M15" "M30" "H1"  "H4"  "D1"  "W1"  "MN1"
EURUSD symbol timeseries: 
Timeseries "EURUSD" M1: Requested: 1000, Actual: 1000, Created: 1000, On the server: 3286
Timeseries "EURUSD" M5: Requested: 1000, Actual: 1000, Created: 1000, On the server: 3566
Timeseries "EURUSD" M15: Requested: 1000, Actual: 1000, Created: 1000, On the server: 3109
Timeseries "EURUSD" M30: Requested: 1000, Actual: 1000, Created: 1000, On the server: 2894
Timeseries "EURUSD" H1: Requested: 1000, Actual: 1000, Created: 1000, On the server: 5505
Timeseries "EURUSD" H4: Requested: 1000, Actual: 1000, Created: 1000, On the server: 5330
Timeseries "EURUSD" D1: Requested: 1000, Actual: 1000, Created: 1000, On the server: 5087
Timeseries "EURUSD" W1: Requested: 1000, Actual: 1000, Created: 1000, On the server: 2564
Timeseries "EURUSD" MN1: Requested: 1000, Actual: 590, Created: 590, On the server: 590
Library initialization time: 00:00:00.032

配置采用当前品种和完整的时间帧列表.
日志中显示以下消息：

--- Initializing "DoEasy" library ---
Working with the current symbol only: "EURUSD"
Working with the full list of timeframes:
"M1"  "M2"  "M3"  "M4"  "M5"  "M6"  "M10" "M12" "M15" "M20" "M30" "H1"  "H2"  "H3"  "H4"  "H6"  "H8"  "H12" "D1"  "W1"  "MN1"
EURUSD symbol timeseries: 
Timeseries "EURUSD" M1: Requested: 1000, Actual: 1000, Created: 1000, On the server: 3390
Timeseries "EURUSD" M2: Requested: 1000, Actual: 1000, Created: 1000, On the server: 5626
Timeseries "EURUSD" M3: Requested: 1000, Actual: 1000, Created: 1000, On the server: 4713
Timeseries "EURUSD" M4: Requested: 1000, Actual: 1000, Created: 1000, On the server: 4254
Timeseries "EURUSD" M5: Requested: 1000, Actual: 1000, Created: 1000, On the server: 3587
Timeseries "EURUSD" M6: Requested: 1000, Actual: 1000, Created: 1000, On the server: 4805
Timeseries "EURUSD" M10: Requested: 1000, Actual: 1000, Created: 1000, On the server: 4035
Timeseries "EURUSD" M12: Requested: 1000, Actual: 1000, Created: 1000, On the server: 3842
Timeseries "EURUSD" M15: Requested: 1000, Actual: 1000, Created: 1000, On the server: 3116
Timeseries "EURUSD" M20: Requested: 1000, Actual: 1000, Created: 1000, On the server: 3457
Timeseries "EURUSD" M30: Requested: 1000, Actual: 1000, Created: 1000, On the server: 2898
Timeseries "EURUSD" H1: Requested: 1000, Actual: 1000, Created: 1000, On the server: 5507
Timeseries "EURUSD" H2: Requested: 1000, Actual: 1000, Created: 1000, On the server: 6303
Timeseries "EURUSD" H3: Requested: 1000, Actual: 1000, Created: 1000, On the server: 6263
Timeseries "EURUSD" H4: Requested: 1000, Actual: 1000, Created: 1000, On the server: 5331
Timeseries "EURUSD" H6: Requested: 1000, Actual: 1000, Created: 1000, On the server: 5208
Timeseries "EURUSD" H8: Requested: 1000, Actual: 1000, Created: 1000, On the server: 5463
Timeseries "EURUSD" H12: Requested: 1000, Actual: 1000, Created: 1000, On the server: 5205
Timeseries "EURUSD" D1: Requested: 1000, Actual: 1000, Created: 1000, On the server: 5087
Timeseries "EURUSD" W1: Requested: 1000, Actual: 1000, Created: 1000, On the server: 2564
Timeseries "EURUSD" MN1: Requested: 1000, Actual: 590, Created: 590, On the server: 590
Library initialization time: 00:00:00.094

配置采用指定的品种列表，并设置了三个品种 EURUSD，AUDUSD，EURAUD。 另外，配置采用指定的时间帧列表（在列表中指定了主要时间帧）。
日志中显示以下消息：

--- Initializing "DoEasy" library ---
Working with predefined symbol list. The number of used symbols: 3
"AUDUSD" "EURUSD" "EURAUD"
Working with the specified timeframe list:
"M1"  "M5"  "M15" "M30" "H1"  "H4"  "D1"  "W1"  "MN1"
AUDUSD symbol timeseries: 
Timeseries "AUDUSD" M1: Requested: 1000, Actual: 1000, Created: 1000, On the server: 3394
Timeseries "AUDUSD" M5: Requested: 1000, Actual: 1000, Created: 1000, On the server: 4024
Timeseries "AUDUSD" M15: Requested: 1000, Actual: 1000, Created: 1000, On the server: 3262
Timeseries "AUDUSD" M30: Requested: 1000, Actual: 1000, Created: 1000, On the server: 3071
Timeseries "AUDUSD" H1: Requested: 1000, Actual: 1000, Created: 1000, On the server: 5104
Timeseries "AUDUSD" H4: Requested: 1000, Actual: 1000, Created: 1000, On the server: 5026
Timeseries "AUDUSD" D1: Requested: 1000, Actual: 1000, Created: 1000, On the server: 5289
Timeseries "AUDUSD" W1: Requested: 1000, Actual: 1000, Created: 1000, On the server: 1401
Timeseries "AUDUSD" MN1: Requested: 1000, Actual: 323, Created: 323, On the server: 323
EURAUD symbol timeseries: 
Timeseries "EURAUD" M1: Requested: 1000, Actual: 1000, Created: 1000, On the server: 3393
Timeseries "EURAUD" M5: Requested: 1000, Actual: 1000, Created: 1000, On the server: 4025
Timeseries "EURAUD" M15: Requested: 1000, Actual: 1000, Created: 1000, On the server: 3262
Timeseries "EURAUD" M30: Requested: 1000, Actual: 1000, Created: 1000, On the server: 3071
Timeseries "EURAUD" H1: Requested: 1000, Actual: 1000, Created: 1000, On the server: 5104
Timeseries "EURAUD" H4: Requested: 1000, Actual: 1000, Created: 1000, On the server: 5026
Timeseries "EURAUD" D1: Requested: 1000, Actual: 1000, Created: 1000, On the server: 4071
Timeseries "EURAUD" W1: Requested: 1000, Actual: 820, Created: 820, On the server: 820
Timeseries "EURAUD" MN1: Requested: 1000, Actual: 189, Created: 189, On the server: 189
EURUSD symbol timeseries: 
Timeseries "EURUSD" M1: Requested: 1000, Actual: 1000, Created: 1000, On the server: 3394
Timeseries "EURUSD" M5: Requested: 1000, Actual: 1000, Created: 1000, On the server: 3588
Timeseries "EURUSD" M15: Requested: 1000, Actual: 1000, Created: 1000, On the server: 3116
Timeseries "EURUSD" M30: Requested: 1000, Actual: 1000, Created: 1000, On the server: 2898
Timeseries "EURUSD" H1: Requested: 1000, Actual: 1000, Created: 1000, On the server: 5507
Timeseries "EURUSD" H4: Requested: 1000, Actual: 1000, Created: 1000, On the server: 5331
Timeseries "EURUSD" D1: Requested: 1000, Actual: 1000, Created: 1000, On the server: 5087
Timeseries "EURUSD" W1: Requested: 1000, Actual: 1000, Created: 1000, On the server: 2564
Timeseries "EURUSD" MN1: Requested: 1000, Actual: 590, Created: 590, On the server: 590
Library initialization time: 00:00:00.266
如我们所见，所需的时间序列是根据 EA 设置中指定的品种和时间帧创建的。 时间序列的创建时间取决于 EA 的启动（冷启/热启），以及之前是否使用了选定的品种及其时间帧。

作者：Artyom Trishkin

 

您好...能否请您说明一下在库中何处以及如何使用价差乘数？我四处查看了一下，它似乎主要用于 CTrading::RequestErrorsCorrecting() 和由此调用的函数中的纠错。在此过程中，乘数的实际用途是什么？

engine.SetSpreadMultiplier(InpSpreadMultiplier);
 
Dima Diall # :

您好...能否请您说明一下在库中何处以及如何使用价差乘数？我四处查看了一下，它似乎主要用于 CTrading::RequestErrorsCorrecting() 和由此调用的函数中的纠错。在此过程中，乘数的实际用途是什么？

如果服务器上的 StopLevel 设置为零，这并不意味着它不存在。这表明该级别是浮动的。通常它等于两个价差大小。在这种情况下，只需要使用乘数来表示需要将价差值乘以多少才能得到正确的 StopLevel 级别。

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