Developer's Reference Introduction

ICE Data Services -

Developer's Reference Introduction
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EFS is the scripting language for the eSignal product. It is based on Javascript (e.g., includes all of the core Javascript objects) and provides extensions that are specific to charting, trading and the manipulation of financial data. With EFS you can create custom indicators, trading systems and function libraries. This document is intended to be a reference for users/developers who are interested in creating new EFS scripts or extending the functionality of existing scripts.

EFS2 is the most recent incarnation of the EFS scripting language and it contains a host of new features, not the least of which are enhanced multi-timeframe support and the ability to create custom series and custom function libraries.