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<CENTER><I><BIG> Abstract: </CENTER></I></BIG>
 
<P><I><UL><FONT SIZE=2>
 
 
This document describes how to use program REPA,
the graphics tool for visualization of observables, residuals,
manual ambiguity resolution and toggle observation suppression status.
 
 
</FONT></I></UL><P>
 
<CENTER><BIG><I> Table of contents: </CENTER></BIG></I>
 
<DL>
<P><DD> 1 &nbsp; <A HREF="#section1"> Scenario 1: Look at residuals </A> </DD><P>
<P><DD> 2 &nbsp; <A HREF="#section2"> Scenar