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the light, efficient network simulator

version 2.63

User's Guide

Installing Lens
Running Lens
Example Networks
Tcl/Tk Basics
Commands and the Shell

Graphical Displays

Main Window
Object Viewer
Unit Viewer
Link Viewer

File Formats and Usage

General File Usage
Script Files
Example Files
Activation Output Files
Weight Files

Special Topics

Time and Events
Group Types: Basic, Input, Output, Cost
Building and Initializing Networks
Training Standard Networks
Simple Recurrent Networks
Fully Recurrent and Continuous Networks
Deterministic Boltzmann Machines
Parallel Training
Doug's Rules of Thumb

Programmer's Guide

Using Lens as a Library
The Code
The Structures
General Coding Issues
Flow of Control

How to Create...

Shell Commands
Fields in an Object or Extension
Network Types
Group Types
Weight Update Algorithms
Example Loading Commands
Group Connection Procedures
Graphical Displays
Hebbian or Other Networks


Hey, I Found a Bug!
Frequently Asked Questions
Common Problems
Version Notes

Command Reference
Tcl/Tk Reference
Offline Manual

Source Code
Latest Source Update

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Douglas Rohde
Last modified: Mon Nov 27 18:40:03 EST 2000