multicharts easy language to c

3 min read 11-09-2024

In the realm of algorithmic trading and quantitative finance, many traders and developers find themselves grappling with the transition between different programming languages. One common scenario is the need to convert strategies written in MultiCharts' EasyLanguage to C. This article delves into this conversion process, leveraging insights from the developer community, particularly from Stack Overflow.

What is EasyLanguage?

EasyLanguage is a programming language specifically designed for trading strategies and analysis in MultiCharts and TradeStation. It provides a syntax that is accessible to traders who may not have extensive programming experience. However, as trading systems evolve or require integration with other applications, converting EasyLanguage code to a more widely used programming language like C becomes necessary.

Why Convert EasyLanguage to C?

Performance Optimization: C is known for its speed and efficiency, making it suitable for high-frequency trading applications where execution speed is critical.
Integration with Other Systems: C can seamlessly integrate with various libraries and APIs, allowing for more complex trading systems.
Code Reusability: C allows developers to create libraries that can be reused across different projects.

Key Differences Between EasyLanguage and C

Understanding the differences between EasyLanguage and C is essential for an effective conversion process. Below are some fundamental distinctions:

Syntax: EasyLanguage is more abstract and user-friendly, while C requires a solid understanding of programming concepts like memory management, pointers, and data types.
Data Types: EasyLanguage has a simpler type system compared to C. For example, EasyLanguage handles complex data types such as series directly, while C requires explicit structuring.
Functions and Control Structures: Both languages have similar control structures (if, for, while), but function definitions and scoping differ significantly.

Conversion Process: Step by Step

Step 1: Analyze the EasyLanguage Code

Before starting the conversion, it is crucial to thoroughly understand the EasyLanguage code. You can refer to community discussions on Stack Overflow to see how others have tackled similar problems. For example, user trader123 provided valuable insights into breaking down EasyLanguage constructs in this question.

Step 2: Identify Core Components

When converting your EasyLanguage code, identify core components, including:

Variables
Functions
Indicators
Conditions and Alerts

Step 3: Write Equivalent C Code

Here’s a basic example of how to convert a simple EasyLanguage strategy into C.

EasyLanguage Code:

Inputs: 
    FastLength(10), 
    SlowLength(30);

Variables: 
    FastMA(0), 
    SlowMA(0);

FastMA = Average(Close, FastLength);
SlowMA = Average(Close, SlowLength);

If FastMA crosses above SlowMA then
    Buy ("BuyOrder") next bar at market;

Equivalent C Code:

#include <stdio.h>
#include <stdlib.h>

void buyOrder() {
    printf("Buy order placed!\n");
}

double average(double *array, int length) {
    double sum = 0;
    for (int i = 0; i < length; i++) {
        sum += array[i];
    }
    return sum / length;
}

void tradingStrategy(double *closePrices, int size, int fastLength, int slowLength) {
    double fastMA, slowMA;
    
    // Calculate moving averages
    fastMA = average(closePrices + (size - fastLength), fastLength);
    slowMA = average(closePrices + (size - slowLength), slowLength);

    // Decision making
    if (fastMA > slowMA) {
        buyOrder();
    }
}

int main() {
    double closePrices[] = { 100, 102, 104, 101, 105, 107 }; // Example close prices
    tradingStrategy(closePrices, 6, 3, 5);
    return 0;
}

Additional Considerations

Error Handling: Unlike EasyLanguage, C requires explicit error handling mechanisms. Make sure to implement checks for potential runtime errors.
Backtesting: After converting your code, conduct extensive backtesting. Utilize existing backtesting frameworks in C or build your own to validate the logic.
Performance Benchmarking: Measure the performance of your C implementation against the original EasyLanguage code. This helps ensure that the conversion retains the intended functionality while optimizing speed.

Conclusion

Converting MultiCharts EasyLanguage to C can significantly enhance the performance and capabilities of your trading systems. By understanding the fundamental differences between the two languages and following a structured approach, traders and developers can navigate this transition successfully. Always engage with community discussions, such as those on Stack Overflow, to gather insights and share experiences as you undertake this conversion.

By implementing these strategies, you’ll be better positioned to make the most of both EasyLanguage and C in your trading endeavors. For further discussions and examples, feel free to explore related topics on Stack Overflow and participate in the vibrant developer community.