1/28/ · Well let me divide EA designing into five main part. 1. First is you need to have your personal trading style. Your EA is just a shadow of you and is build in your own image. 2. Draw out your trading method or flow diagram in a paper so that you will not be confused while designing. 3 Step 4: Find and hire a forex programmer to build your EA / robot Now you will need to find a forex programmer to turn your ideas and instructions into code that the platform understands. Ensure that the forex programmer has the necessary skills, and ideally that they have created forex robots that are similar to the one you are blogger.comted Reading Time: 5 mins 6/20/ · Forex robot is every strategy that is automated properly in order to open and close trades according to predefined rules. The strategy builders allow us to create Forex EA without programming as Forex robots without mistakes in the code. And this is one of the most common problems if you code the Forex robot by yourself or you hire a developer
How to Create a Forex Robot without Programming | EA Trading Academy
This article is aimed at beginners who wish to learn how to write simple Expert Advisors in the new MQL5 language. We will begin first by defining what we want our EA Expert advisor to do, and then move on to how we want the EA to do it. The above is called a trading strategy. Before you can write an EA, you must first develop the strategy that you want to automate into the EA.
So in this case, let us modify the above statement so that it reflects the strategy we want to develop into an EA. We will use an indicator called Moving Average with a period of 8 You can choose any period, but for the purpose of our strategy, we will use 8. We have now developed our strategy; it is now time to start writing our code. Begin by launching the MetaQuotes Language Editor 5. In the MQL5 Wizard window, select Expert Advisor and click the "Next" as shown on Fig.
Figure 2. Selecting program type. In the next window, type the Name you want to give to your EA in the Name box. You can then type your name in the Author box and also your how to write ea forex address or email address in the How to write ea forex box if you have one.
Figure 3. General properties of the Expert Advisor. Since we want to be able to change some of the parameters for our EA in order to see which of the values can give us the best result, we shall add them by clicking the "Add" button. Figure 4. Setting EA input parameters. In our EA, we want to be able to experiment with our Stop Loss, Take How to write ea forex, ADX Period, and Moving Average Period settings, so we will define them at this point.
Double Click under the Name section and type the name of the parameter, then double click under the Type to Select the data type for the parameter, and double click under the Initial value section and type the initial value for the parameter. Figure 5. Data types of EA input parameters. As you can see above, I selected integer int data type for all the parameters. Let us talk a little about data types. From the above description of the various data types, the unsigned integer types are not designed for storing negative values, any attempt to set a negative value can lead to unexpected consequences.
For example, if you want to store negative values, you cannot store them inside the unsigned types i, how to write ea forex. uchar, uint, ushort, ulong.
Back to our EA, how to write ea forex. Looking at the data types, you will agree with me that we are suppose to use char or uchar data types since the data we intend to store in these parameters are less than how to write ea forex respectively. For good memory management, this is the best thing to do. However for the sake of our discussion, we will still stick to the int type.
Once you are done setting all the necessary parameters, click the Finished button and the MetaQuotes Editor will create the skeleton of the code for you as shown in the next figure. The top part Header of the code is where the property of the EA is defined. You can see that here are the values you filled in the MQL5 Wizard in figure 3.
In this section of the code, you can define additional parameters like description brief text description of the EAdeclare constants, include additional files or import functions. define :. The define directive is used for a declaration of constants. It is written in the form, how to write ea forex.
You can read more about the preprocessor directives in the MQL5 Manual. Let us now continue with our discussion.
The second part of the header of our code is the input parameters section:. We specify all parameters, which will be used in our EA at this section. These include all variables how to write ea forex will be used by all the functions we will be writing in our EA. Variables declared at this level are called Global Variables because they are accessible by every function in our EA that may need them.
The input parameters are parameters that can only be changed outside of our EA. We can also declare other variables which we will manipulate in the course of our EA but will not be available outside of our EA in this section. Next is the EA initialization function. This is the first function that is called when the EA is launched or attached to a chart and it is called only once. This section is the best place to make some important checks in order to make sure our EA works very well, how to write ea forex.
We can decide to know if the chart has enough bars for our EA to work, etc. It is also the best place to get the handles we how to write ea forex be using for our indicators ADX and Moving Average indicators. The OnDeinit functio n is called when the EA is removed from the chart. For our EA, we will release the handles created for our Indicators during the initialization in this section. This function process the NewTick eventwhich is generated when a new quote is received for a symbol.
Note, how to write ea forex, that Expert Advisor cannot perform trade operations if the use of Expert Advisors in the client terminal is not allowed Button "Auto Trading". Most of our codes that will implement our trading strategy, developed earlier, will be written within this section, how to write ea forex. Now that we have looked at the various sections of the code for our EA, how to write ea forex, let us begin adding flesh to the skeleton.
As you can see, we have added more parameters. Before we continue discussing the new parameters, let us discuss something you can see now.
With comments, we are able to know what our variables stand for, or what we are doing at that point in time in our code. It also gives a better understanding of our code.
There are two basic ways of writing comments:, how to write ea forex. This is a multi-line comment. The compiler ignores all comments when compiling your code. Using single-line comments for the input parameters is a good way of making our EA users understand what those parameters stands for.
On the EA Input properties, our users will not see the parameter itself, but instead they will see the comments as shown below:. Figure 7. Expert Advisor input parameters. We have decided to add additional parameters for our EA. A double is used to store floating point constants, which contain an integer part, a decimal point, and a fraction part. The Lot to trade Lot represents the volume of the financial instrument we want to trade. Then we declared other parameters that we will be using:. The adxHandle is to be used for storing the ADX indicator handle, while the maHandle will store the handle for the Moving Average indicator.
The maVal[] is a dynamic array that will hold the values of the Moving Average indicator for each bar on the chart. By the way, what are dynamic arrays?
A dynamic array is an array declared without a dimension. In other words, no value is specified in the pair of square brackets. A static array, on the other hand has its dimensions defined at the point of declaration. STP and TKP are going to be used to store the Stop Loss and the Take Profit values in our EA. Here we obtain the handles of our indicator using the respective indicator functions. The ADX indicator handle is obtained by using the iADX function.
The Moving Average indicator handle is obtained by using the iMA function. It has the following arguments:. Please read the MQL5 manual to get more details about these indicator functions. It will give you a better understanding of how to use each indicator. We use the alert function to display the error using the GetlastError function. We decides to store the Stop Loss and the Take Profit values in the variables STP and TKP we declared earlier.
Why are we doing this? So here we want to make sure that our EA works very well with all brokers. Digits or Digits r eturns the number of decimal digits determining the accuracy of price of the current chart symbol. For a 5-digit or 3-digit price chart, we multiply both the Stop Loss and the Take Profit by Since this function is called whenever the EA is disabled or removed from a chart, we will release all the indicators handles that were created during the initialization process here.
We created two handles, one for ADX indicator and another handle for the Moving Average indicator. We will use the IndicatorRelease function to accomplish this. It takes only one argument the indicator handle. How to write ea forex function removes an indicator handle and release the calculation block of the indicator, if it's not been used.
The first thing we have to do here is to check if we have enough bars on the present chart. We can get the total bars in history of any chart using the Bars function. These two return the current symbol for the current chart on which our EA is attached and the period or timeframe of the present chart can be obtained using Period or Period.
How To Optimize a Forex EA Tutorial: How To Make Any Expert Advisor Profitable
, time: 35:54How to Create a Simple Forex EA Using the MetaEditor Wizard - blogger.com
1/28/ · Well let me divide EA designing into five main part. 1. First is you need to have your personal trading style. Your EA is just a shadow of you and is build in your own image. 2. Draw out your trading method or flow diagram in a paper so that you will not be confused while designing. 3 2/27/ · Forex EA generator can create amazing money-making robots for you without requiring any programming skills or other technical skills. We call it Forex Robot Factory which is a very easy to use Expert Advisor generator. You can easily develop an application that automatically makes trades on 9/22/ · With this Wizard you can create/learn how to create simple EA's: blogger.com hope this helps Liberate me ex inferis
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