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6

Where to get reliable and accurate M1 historical data for MT4?

I downloaded M1 historical data using the history center in MT4 but getting dozes of errors like this during backtesting: 2009.03.28 12:01:37 TestGenerator: unmatched data error (low value 1.2565 at 2008.11.24 09:00 and price 1.2563 mismatched) Also, the report shows "n/a" for the modelling quality

0

Why is period_converter script producing different number of records for the same number of M1 records?

Sometime ago, I imported historical data into MT4 and today realized that imported data was GMT+1, so I wanted to correct this and import it again using shift = -1. In both cases, there are 2524624 M1 bars (as shown in the history center), however the number of H4 bars (produced from M1 data using

6

Why predefined variable "Point" is 0 when using a sub-pip broker?

Today, I updated MT4 to the latest version (build 222) and noticed that the predefined variable "Point" returns 0 when using a sub-pip broker (such as United World Capital, which is the default demo broker in 222 build). MarketInfo (Symbol(), MODE_POINT) also returns 0. As as result, any code that

3

Bug report - tester downloads D1 data from the broker again which causes mismatched data errors

I finally found the root cause of problems in the tester (see my other post here ). Steps to reproduce: 1) Stop MT4 2) Delete all files under MT4_HOME/history and MT4_HOME/tester/history 3) Start MT4 4) Go to history center and download EURUSD M1 data (when prompted say OK) 5) Now go to the tester

7

Misleading "unmatched data error" message or a bug?

During backesting, I'm seeing the following error message: 2009.03.30 23:27:26 TestGenerator: unmatched data error (low value 1.3987 at 2008.12.30 09:05 and price 1.3986 mismatched) However (as depicted on the attached screenshot) the low value is 1.3986, not 1.3887 as stated above . There are

2

The same test with the same settings (EA, symbol. etc.) run twice - why is modeling quality different?

In another post I complained about modeling quality itself. Now I found that the modeling quality is not constant for the same test that is run multiple times . This ultimately proves that the tester is not reliable (build 222). 1. First, let's make sure that we delete all history and tester cache

1

Missing data in the History Center for EUR/USD (build 222)?

After I downloaded data for the EUR/USD symbol using the History Center, I can only see 1 minute data from 03/25/2009 till 03/27/2009. There is no data available prior to 03/25/2009. Is this correct? How to get all data, i.e. starting from 2000? Not sure if I'm correctly verifying this: I expand

2

Calling SetIndexStyle() doesn't work from init() when the code is recompiled - a bug?

What I noticed that if an indicator is recompiled while still being attached to a chart, the line width specified via SetIndexStyle() is ignored inside init() and the default width is used (1). Here is the code, you can try it yourself: #property indicator_chart_window #property indicator_buffers 1

14

IndicatorCounted() - let's clarify this once and for all

According to the description of the IndicatorCounted () function in the manual: ...To avoid indicator calculation errors in such situations, the IndicatorCounted() function returns the count of bars minus one. The above is clear, then after this a code example follows: //---- the last counted bar

7

Do I need to normalize this (double_type * Point)?

Do I need to normalize the following calculated stop loss? double sl = 20 * Point; The documentation states that: The calculated StopLoss and TakeProfit values, as well as open price of pending orders must be normalized with a precision the value of which is stored in the pre-defined variable of