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<DIV><FONT size=2>hello again antonio</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>yes, it is</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>the function name is correlate</FONT></DIV>
<DIV><FONT size=2>you can have a look at the manual for more
details</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>from my experience at least, i can tell you the folowing..
more advanced users can chip in if they wish!</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>for example if you have 2 files: </FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>r file1 file2</FONT></DIV>
<DIV><FONT size=2>correlate master 2 (or else the
default for master is file1)</FONT></DIV>
<DIV><FONT size=2>w file3 file4</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>then file4 is the autocorrelation (2 with 2) and file3 is the
cross correlation (1 with 2)</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>itīs best to run first with 2 files that have a known result,
e.g. the same file with a known timelag, and then check that what you get is
what you expected</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>hope this helps</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>olga</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2></FONT> </DIV>
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=antonio.brigante@unina.it
href="mailto:antonio.brigante@unina.it">antonio.brigante@unina.it</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=sac-help@iris.washington.edu
href="mailto:sac-help@iris.washington.edu">sac-help@iris.washington.edu</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Tuesday, November 11, 2008 9:36
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> [SAC-HELP] Cross Correlation
Function</DIV>
<DIV><BR></DIV>
<P>Dear all </P>
<P>I'd like to know if is possible with sac to use the cross correlation
function for two seismic signals.</P>
<P>Best regards</P>
<P>Antonio Brigante (Ph.D. Student, University Federico II of Naples,
Dipartimento di Ingegneria Geotecnica Idraulica ed Ambientale)</P>
<P>
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