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<H2><A NAME="SECTION00372000000000000000"></A>
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1.7.2 Logarithmic projection
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<P>
We next will show how to do a basemap for a log-log plot. We will
assume that the raw <I>x</I> data range from 3 to 9613 and <I>y</I>
ranges from <!-- MATH
$3.2 \cdot 10^{20}$
-->
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$6.8 \cdot 10^{24}$
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ALT="$6.8 \cdot 10^{24}$">. One possibility is
<P>
<PRE>
psbasemap -R1/10000/1e20/1e25 -JX9il/6il \
-B2:"Wavelength (m)":/a1pf3:"Power (W)":WS >! plot.ps
</PRE>
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(The backslash <IMG
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<ADDRESS>
Paul Wessel
2001-04-18
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