ModFit/MODFIT.HTM at master · guruscott-meyer/ModFit · GitHub

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<html>
<h5>Introducing:</h5>
<center>
<h1>ModFit ver 0.5</h1>
<h5>by</h5>
<h3>Scott Meyer</h3>
An applet written for MTH(CIS)300.<br>
Requires JVM 1.4.1<br>
If you don't see the applet below, you need to go
<a href = "http://java.sun.com/getjava/download.html">here</a>.<p>
<applet code="ModFit.class" archive="ModFit.jar" width=800 height=400>
</applet><p>
</center>
Instructions:
<ol>
<li>Type values into boxes marked "X" and "Y".</li>
<li>Click "Add".</li>
<li>Repeat until all values are entered.<br>
    Clicking "Undo" will remove last value entered.</li>
<li>Select desired model.</li>
<li>Click "Calculate Parameters".</li>
<li>To start over, click "Clear".</li>
</ol>
Features:
<ul>
<li>Values are stored in a linked list, so data can be of any arbitrary length.
</li>
<li>Support for floating-point values up to 1.79769 x 10<sup>308</sup>.</li>
<li>On-the-fly data transformation.</li>
<li>Support for tab-over data entry (sounds trivial, I know, but it was hard to implement (considerably easier with this version) ).</li>
</ul>
What's New?
<ul>
<li>Mostly functional changes.  A few bugs have been corrected, most notably the Cubic model.
A lot of functionality has been transferred to the Formula class and subclasses which are now
more universal so they can be easily used in other projects.</li>
<p>(Ver 0.4):<br>
<li>Several new polynomial models have been added, with support available for many more
should there be a need for them.  The Formula class has now contains many generic methods
for manipulating data and calculating parameters.  Each overriding class now calculates its
own parameters from arrays of data.</li>
<p>(Ver 0.3):<br>
<li>Graphical Representation.  Now when you type in your data, the program plots the
points onto a separate frame and creates a graph of the calculated model.  Much of this
was accomplished through the creation of the abstract class "Formula" which is then
overloaded as several specific formula types, any of which can be passed to the
"plotLine" method for drawing the model to the screen.  Adding new models should be
no more difficult than defining a new class.</li>
<li>The scatterplot resizes itself to accomodate the data.</li>
<li>New tabbed layout design, should allow me to add new features without having to
redesign the entire interface.  Just add a new tab.</li>
<li>The program now calculates minimum and maximum deviations from the model.  This
should be useful for determining which of the various models best fits the data.</li>
<p>(Ver 0.2):<br>
<li>By using provided classes rather than writing them myself, I was able to optimize much of the program.  The entire applet is now approximately half the size of version 0.1.</li>
<li>There's now an "Undo" button, which allows you to delete the last entry in case you make a mistake.</li>
</ul>
Plans for version 0.6:
<ul>
<li>File system support.  Soon you should be able to load and save data to and from a  file rather than typing it all in by hand every time (this has turned out to be more
difficult than I thought, as Java has very strict file system accessibility
restrictions for applets).</li>
<li>Cubic Splines</li>
</ul>
Questions? Comments? Insults? <a href="mailto://scott.meyer@campus.fontbonne.edu">email
</a> me.

</html>