<html><body><div style="color:#000; background-color:#fff; font-family:times new roman, new york, times, serif;font-size:12pt"><div><span><br></span></div><div>Hi Tereza,</div><div><br></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style: normal;">with regards the running eof on windows, i am having problem sorting out the "eofudf" problem.</div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style: normal;"><br></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style: normal;">ugo okoro</div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style: normal;">cmsr-iqp,</div><div style="color: rgb(0,
0, 0); font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style: normal;">cas, beijing</div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style: normal;"><br><blockquote style="border-left: 2px solid rgb(16, 16, 255); margin-left: 5px; margin-top: 5px; padding-left: 5px;"> <div style="font-family: times new roman, new york, times, serif; font-size: 12pt;"> <div style="font-family: times new roman, new york, times, serif; font-size: 12pt;"> <div dir="ltr"> <font face="Arial" size="2"> <hr size="1"> <b><span style="font-weight:bold;">From:</span></b> "tcavazos@cicese.mx" <tcavazos@cicese.mx><br> <b><span style="font-weight: bold;">To:</span></b> GrADS Users Forum <gradsusr@gradsusr.org> <br> <b><span style="font-weight: bold;">Sent:</span></b> Monday, January 28, 2013 1:57 AM<br> <b><span
style="font-weight: bold;">Subject:</span></b> Re: [gradsusr] Fw: EOF and spectral analysis on GrADS<br> </font> </div> <br>Here is the link for EOFgrads:<br><br><a href="http://www.atmos.ucla.edu/~munnich/Grads/EOF/" target="_blank">http://www.atmos.ucla.edu/~munnich/Grads/EOF/</a><br><br>Tereza<br><br><br>> <a href="http://www.netlib.org/lapack/patch-3.0/src/" target="_blank">http://www.netlib.org/lapack/patch-3.0/src/</a><br>> for example<br>> Given a square (N,N) real non-symmetric matrix, compute the eigenvalues<br>> and, optionally, the left and/or right eigenvectors via the LAPACK<br>> subroutine :-<br>><br>> SVD Method<br>> <a href="http://www.netlib.org/lapack/patch-3.0/src/dgeevx.f" target="_blank">http://www.netlib.org/lapack/patch-3.0/src/dgeevx.f</a><br>><br>> On Sun, Jan 27, 2013 at 2:21 AM, Jose <<a ymailto="mailto:veiga.uea@gmail.com" href="mailto:veiga.uea@gmail.com">veiga.uea@gmail.com</a>>
wrote:<br>><br>>> Dear Tamer Nada<br>>><br>>> Thank you by your explanation and suggestions. They were clear.<br>>><br>>> By the way do you know where can I found the fortran subroutines from<br>>> lepak library you commented?<br>>><br>>><br>>> Thanks in advance<br>>><br>>> Enviado via iPad<br>>><br>>> Em 26/01/2013, às 16:53, Tamer Nada <<a ymailto="mailto:tamer540@gmail.com" href="mailto:tamer540@gmail.com">tamer540@gmail.com</a>> escreveu:<br>>><br>>> Dear :- Jose Augusto Paixão Veiga<br>>><br>>> In Fortran :-<br>>><br>>> You must know there is about 3 methods ( algorithms ) to calculate<br>>> eigen<br>>> Vector and eigen Value each method some of it efficient but just<br>>> compute<br>>> only first Eigen value and first Eigen vector by suggest value and using<br>>> iteration methods to
compute it until reach to the difference between<br>>> old<br>>> value from last iteration to new value equal small fraction you can<br>>> determine it . another to methods using "SVD " and this method its<br>>> divided<br>>> by to relative to the shap of data matrix and some of it efficient but<br>>> slow and some fast and not efficient<br>>><br>>> I suggest to you to use lepak library in fortran ( its easy to call<br>>> subroutine ) or using high level language or statistical or climatic<br>>> package like NCL or R or Matlab<br>>><br>>> On Sat, Jan 26, 2013 at 9:56 PM, Jose Augusto Paixão Veiga <<br>>> <a ymailto="mailto:veiga.uea@gmail.com" href="mailto:veiga.uea@gmail.com">veiga.uea@gmail.com</a>> wrote:<br>>><br>>>> Dear EOF expertise,<br>>>><br>>>> one of you would have a material given instruction (if possible step
by<br>>>> step) on how to calculate EOF?<br>>>><br>>>> I would like to do a fortran program, from the initial point (for<br>>>> example: 1-read a 3-d matrix data, 2-calculate its inversion,<br>>>> 3-multiply it<br>>>> by its ....), to calculate EOF for climate study purposes.<br>>>><br>>>> A flux diagram will be very appreciated.<br>>>><br>>>> Thanks in advance.<br>>>><br>>>> Augusto<br>>>><br>>>><br>>>> On Jan 26, 2013, at 3:41 PM, Tamer Nada <<a ymailto="mailto:tamer540@gmail.com" href="mailto:tamer540@gmail.com">tamer540@gmail.com</a>> wrote:<br>>>><br>>>> on Grads No, but you can use NCL or R to compute EOF; and Only R or<br>>>> Matlab to Compute CCA ,But also you can Use NCL to compute "SVD" and<br>>>> after<br>>>> that you can compute CCA
,actually NCL have function to compute CCA<br>>>> ,But<br>>>> not efficient because its use old IBM Fortran subroutine ,so its not<br>>>> work<br>>>> fine with big array of data and may be hang in calculation ,so i prefer<br>>>> to<br>>>> use SVD function and after that you can compute CCA<br>>>><br>>>> On Sat, Jan 26, 2013 at 9:58 AM, ugo okoro <<a ymailto="mailto:uknac23@yahoo.com" href="mailto:uknac23@yahoo.com">uknac23@yahoo.com</a>> wrote:<br>>>><br>>>>><br>>>>> Dear all,<br>>>>><br>>>>> Please any info on how to run EOF and spectral analysis<br>>>>> (frequency-time)<br>>>>> on GrADS?<br>>>>><br>>>>> Anticipating prompt response.<br>>>>><br>>>>> Thanks.<br>>>>><br>>>>> Ugo Okoro.<br>>>>>
CMSR-IAP<br>>>>> CAS, Beijing.<br>>>>><br>>>>><br>>>>> _______________________________________________<br>>>>> gradsusr mailing list<br>>>>> <a ymailto="mailto:gradsusr@gradsusr.org" href="mailto:gradsusr@gradsusr.org">gradsusr@gradsusr.org</a><br>>>>> <a href="http://gradsusr.org/mailman/listinfo/gradsusr" target="_blank">http://gradsusr.org/mailman/listinfo/gradsusr</a><br>>>>><br>>>>><br>>>><br>>>><br>>>> --<br>>>> =====================<br>>>> *Tamer Ali Nada *<br>>>> **<br>>>> *Research Worker*<br>>>> **<br>>>> *Cairo Numerical Weather Prediction Center { CNWP}*<br>>>> **<br>>>> *Egyption Meteorological Authority { EMA }*<br>>>> **<br>>>> *Cairo , Egypt*<br>>>> ============================<br>>>>
*<a ymailto="mailto:tamer540@yahoo.com" href="mailto:tamer540@yahoo.com">tamer540@yahoo.com</a><br>>>> <a ymailto="mailto:tamer540@gmail.com" href="mailto:tamer540@gmail.com">tamer540@gmail.com</a><br>>>> <a ymailto="mailto:tamer.nada@noaa.gov" href="mailto:tamer.nada@noaa.gov">tamer.nada@noaa.gov</a>*<br>>>> _______________________________________________<br>>>> gradsusr mailing list<br>>>> <a ymailto="mailto:gradsusr@gradsusr.org" href="mailto:gradsusr@gradsusr.org">gradsusr@gradsusr.org</a><br>>>> <a href="http://gradsusr.org/mailman/listinfo/gradsusr" target="_blank">http://gradsusr.org/mailman/listinfo/gradsusr</a><br>>>><br>>>><br>>>><br>>>> _______________________________________________<br>>>> gradsusr mailing list<br>>>> <a ymailto="mailto:gradsusr@gradsusr.org" href="mailto:gradsusr@gradsusr.org">gradsusr@gradsusr.org</a><br>>>>
<a href="http://gradsusr.org/mailman/listinfo/gradsusr" target="_blank">http://gradsusr.org/mailman/listinfo/gradsusr</a><br>>>><br>>>><br>>><br>>><br>>> --<br>>> =====================<br>>> *Tamer Ali Nada *<br>>> **<br>>> *Research Worker*<br>>> **<br>>> *Cairo Numerical Weather Prediction Center { CNWP}*<br>>> **<br>>> *Egyption Meteorological Authority { EMA }*<br>>> **<br>>> *Cairo , Egypt*<br>>> ============================<br>>> *<a ymailto="mailto:tamer540@yahoo.com" href="mailto:tamer540@yahoo.com">tamer540@yahoo.com</a><br>>> <a ymailto="mailto:tamer540@gmail.com" href="mailto:tamer540@gmail.com">tamer540@gmail.com</a><br>>> <a ymailto="mailto:tamer.nada@noaa.gov" href="mailto:tamer.nada@noaa.gov">tamer.nada@noaa.gov</a>*<br>>><br>>> _______________________________________________<br>>> gradsusr
mailing list<br>>> <a ymailto="mailto:gradsusr@gradsusr.org" href="mailto:gradsusr@gradsusr.org">gradsusr@gradsusr.org</a><br>>> <a href="http://gradsusr.org/mailman/listinfo/gradsusr" target="_blank">http://gradsusr.org/mailman/listinfo/gradsusr</a><br>>><br>>><br>>> _______________________________________________<br>>> gradsusr mailing list<br>>> <a ymailto="mailto:gradsusr@gradsusr.org" href="mailto:gradsusr@gradsusr.org">gradsusr@gradsusr.org</a><br>>> <a href="http://gradsusr.org/mailman/listinfo/gradsusr" target="_blank">http://gradsusr.org/mailman/listinfo/gradsusr</a><br>>><br>>><br>><br>><br>> --<br>> =====================<br>> *Tamer Ali Nada *<br>> **<br>> *Research Worker*<br>> **<br>> *Cairo Numerical Weather Prediction Center { CNWP}*<br>> **<br>> *Egyption Meteorological Authority { EMA }*<br>> **<br>> *Cairo , Egypt*<br>>
============================<br>> *<a ymailto="mailto:tamer540@yahoo.com" href="mailto:tamer540@yahoo.com">tamer540@yahoo.com</a><br>> <a ymailto="mailto:tamer540@gmail.com" href="mailto:tamer540@gmail.com">tamer540@gmail.com</a><br>> <a ymailto="mailto:tamer.nada@noaa.gov" href="mailto:tamer.nada@noaa.gov">tamer.nada@noaa.gov</a>*<br>> _______________________________________________<br>> gradsusr mailing list<br>> <a ymailto="mailto:gradsusr@gradsusr.org" href="mailto:gradsusr@gradsusr.org">gradsusr@gradsusr.org</a><br>> <a href="http://gradsusr.org/mailman/listinfo/gradsusr" target="_blank">http://gradsusr.org/mailman/listinfo/gradsusr</a><br>><br><br><br>-- <br>Tereza Cavazos<br>Departamento de Oceanografia Fisica<br>CICESE<br>Ensenada, Baja California, MEXICO<br><a href="http://usuario.cicese.mx/~tcavazos/"
target="_blank">http://usuario.cicese.mx/~tcavazos/</a><br><br>_______________________________________________<br>gradsusr mailing list<br><a ymailto="mailto:gradsusr@gradsusr.org" href="mailto:gradsusr@gradsusr.org">gradsusr@gradsusr.org</a><br><a href="http://gradsusr.org/mailman/listinfo/gradsusr" target="_blank">http://gradsusr.org/mailman/listinfo/gradsusr</a><br><br><br> </div> </div> </blockquote></div> </div></body></html>