Price Comparison Library
Info
The Price Comparison Library is a Library for MetaTrader 5 that this lightweight cross-platform library enables efficient and rapid comparison of 'double' values for the 'price' variable. For instance, prior to executing a selllimit order, it can be advantageous to verify if the opening price is lower than the current bid price.
Usage
This tool is typically used for enhancing chart analysis and decision making.
Platform
This Library works exclusively on MetaTrader 5 (both build 600+ and newer versions).
Setup
Place the downloaded file in MQL5/Libraries folder via File ? Open Data Folder in MetaTrader 5.
How to Install and Use Price Comparison Library
1. Storage: Place library files in the MQL/Libraries directory to ensure they are accessible to your projects.
2. Implementation: Include the library in your code using the #import directive, ensuring you match the exact function names and parameters.
3. Compilation: Ensure the library is present in the directory before you compile your main EA or script, as the compiler links them during this phase.
4. Management: Keep libraries organized in sub-folders if you manage many custom functions to maintain a clean project structure.
Frequently Asked Questions
Q: What is a library file used for? A: Libraries store reusable code modules, allowing you to centralize common logic used by multiple EAs or indicators.
Q: Is a library executable? A: No, libraries are non-executable files containing functions; they must be imported into an EA, indicator, or script to function.
Q: Can I update a library while the platform is running? A: You should compile your EA or script after updating a library to ensure the latest code changes are integrated.
What this tool does
This lightweight cross-platform library enables efficient and rapid comparison of 'double' values for the 'price' variable.
Typical Use Case
This Library excels in automated trading and technical analysis on MetaTrader 5.
Compatible Platform & Setup
This Library works on MetaTrader 5. Place the file in the MQL5/Libraries folder and restart the terminal.
Description & Settings
Related: Price Channel Indicator on Array - another powerful library for MetaTrader 5 traders.
This lightweight cross-platform library enables efficient and rapid comparison of 'double' values for the 'price' variable.Also recommended: Price Channel Stop Indicator Trading Signals Module - similar library with strong performance on MetaTrader 5.
For instance, prior to executing a selllimit order, it can be advantageous to verify if the opening price is lower than the current bid price. This approach not only enhances code clarity and conciseness compared to standard type checks but also significantly boosts execution speed, leading to potential performance improvements in the tester/optimizer.
The library supports setting the precision for 'double' value comparisons. For instance,
All comparison operators (==, !=, >=, <=, >, <) are managed similarly.
The library incorporates a faster implementation method. To enhance the execution speed of the standard function, simply add the following line at the beginning:
The accompanying script demonstrates the outcomes of comparison and normalization methods for various price values.
You may also like: cprice - excellent alternative for library users on MetaTrader 5.
Source Code
#include <price_compare.mqh>
#define compare(operator) \
if (cp(price1) operator price2) \
str += " " + #operator;
string comparetostring( const double price1, const double price2 )
{
string str = "";
compare(==)
compare(!=)
compare(>=).......
⚠ Limitations & Risk Warning
- This tool is provided for educational and testing purposes only.
- Past performance does not guarantee future results.
- Trading involves substantial risk of loss. Use on a demo account first.
- Results may vary depending on market conditions, broker, and settings.
- We recommend thorough backtesting and forward testing before using with real funds.