Essentials - TradeStation

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EasyLanguage Essentials

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EasyLanguage Essentials Programmers Guide

Audience

This book has been designed with the beginning EasyLanguage programmer in mind. Our goal with this book is to provide useful information to anyone interested in learning more about the features and uses of TradeStation EasyLanguage. The primary audience for this material is traders and developers of technical analysis indicators and trading strategies.

Experience in any other programming language is helpful but is not required to learn and utilize EasyLanguage.

About This Book

EasyLanguage Essentials Programmers Guide is a programmers introduction to TradeStation's EasyLanguage programming tools. This book is based on the current release of TradeStation 8.3.

It is assumed that the reader has access to the TradeStation platform.

The book is divided into several chapters and appendixes each designed to familiarize you with the basic concepts and principles of EasyLanguage programming.

Although the book is comprehensive, it not designed to answer every question you may have about EasyLanguage, and is not a complete reference guide. There are many additional on-line resources available that can help answer those issues not covered in the book.

Visit the TradeStation Support site at: .

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EasyLanguage Essentials Programmers Guide

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EasyLanguage Essentials Programmers Guide

Table of Contents

Preface.........................................................................................................1

What is EasyLanguage? .................................................................................. 1 Compatibility with Previous Versions............................................................. 2 Forward Compatibility .................................................................................... 2 Backward Compatibility.................................................................................. 2 3rd Party Development Platform..................................................................... 2 Security............................................................................................................ 2

Introduction................................................................................................3

Analysis Applications: Chart Analysis, RadarScreen, and OptionStation ...... 3 Naming Conventions ....................................................................................... 3 Text Conventions............................................................................................. 4 Example Conventions...................................................................................... 4

Program Structure.....................................................................................5

Scope ............................................................................................................... 5 Calculation Procedures.................................................................................... 5 MaxBarsBack .................................................................................................. 6

Charting Basics ..........................................................................................8

Data Intervals................................................................................................... 8 Bar Attribute Reserved Words ........................................................................ 8 BarType ........................................................................................................... 8 BarInterval....................................................................................................... 9 CurrentBar ....................................................................................................... 9 BarNumber ...................................................................................................... 9

Price Data Elements.................................................................................10

Bar Price Data Points..................................................................................... 10 Trade Volume, Tick Count, and Open Interest ............................................. 10 Bar Volume Data Points................................................................................ 10 Option Volume, Option Open Interest, and Implied Volatility..................... 11 Option Volume Data Points........................................................................... 11 Time and Date Data Points............................................................................ 12 Quote Fields................................................................................................... 13 Fundamental Data.......................................................................................... 14 GetFundData.................................................................................................. 14 Available Fundamental Data Fields .............................................................. 14 Multi-Data Analysis ...................................................................................... 15

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