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Chapters:
<br>
<a href="Introduction.html">1: Introduction</a><br>
<a href="SimpleExample.html">2: Simple example</a><br>
<a href="InvokingGri.html">3: Invocation</a><br>
<a href="GettingMoreControl.html">4: Finer Control</a><br>
<a href="X-Y.html">5: X-Y Plots</a><br>
<a href="ContourPlots.html">6: Contour Plots</a><br>
<a href="Images.html">7: Image Plots</a><br>
<a href="Examples.html">8: Examples</a><br>
<a href="Commands.html">9: Gri Commands</a><br>
<a href="Programming.html">10: Programming</a><br>
<a href="Environment.html">11: Environment</a><br>
<a href="Emacs.html">12: Emacs Mode</a><br>
<a href="History.html">13: History</a><br>
<a href="Installation.html">14: Installation</a><br>
<a href="Bugs.html">15: Gri Bugs</a><br>
<a href="TestSuite.html">16: Test Suite</a><br>
<a href="GriInThePress.html">17: Gri in Press</a><br>
<a href="Acknowledgments.html">18: Acknowledgments</a><br>
<a href="License.html">19: License</a><br>
<br>
Indices:<br>
<a href="ConceptIndex.html"><i>Concepts</i></a><br>
<a href="CommandIndex.html"><i>Commands</i></a><br>
<a href="BuiltinIndex.html"><i>Variables</i></a><br>
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<h2>4.1: An example</h2>
Below is a followup to the previous example, which names the x and the y
axes.
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<PRE>
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# Fancier version of Example 1
open example1.dat
read columns x y
set x name "Time, hours"
set y name "U, m/s"
draw curve
</font></PRE>
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<p>
The difference is that the x and y axes are named with a `<font color="#82140F"><code>set</code></font>'
command. There are many `<font color="#82140F"><code>set</code></font>' commands, and they are all pretty
simple, e.g. `<font color="#82140F"><code>set x size 15</code></font>' makes the x-axis be 15 centimeters
long, instead of the default of 10 centimeters. Indeed, you can control
anything you want in gri, e.g. graph size, line width, fonts, etc etc.
Speaking of fonts, the `<font color="#82140F"><code>$\alpha$</code></font>' type of latex formatting of Greek
letters is supported in a limited way.
Also, Gri handles ISO-Latin-1 encodings as well as the U.S. style.
<p>
The example below illustrates a few more `<font color="#82140F"><code>set</code></font>' commands. This
example is intentionally complicated, being about a good example of the
level of complexity of many plots made by Gri. Read the comments to see
what is being done, and consult the plot as you read the commandfile.
<p>
<A HREF="example3.png">
<IMG ALT="Example 3" SRC="example3-tiny.png"
ALIGN=top>
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<A HREF="example3.html">The command-file.</A> <P>
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