Thread: using PDS command

Started: 2010-10-15 21:49:14
Last activity: 2010-10-17 14:59:34
Topics: SAC Help
Fatih Sevim
2010-10-15 21:49:14



Hi,
I want to calculate power density spectrum via "PDS" command but
ı came up against "ERROR 5003: No correlation function calculated."
I need your help.

Best regards,
Fatih.

  • Arthur Snoke
    2010-10-17 14:59:34
    From the SAC Help page for COR
    http://www.iris.edu/software/sac/commands/spe.com/cor.html:

    This correlation function is used in the calculation of the spectral
    estimate.

    COR must therefore be executed before PDS, MLM, or MEM.

    We hope to review both the SPE and SSS subprocesses before the next
    release of SAC. I would appreciate any suggestions you or others on this
    list have regarding these sub-processes.

    One small change prompted by your question is to add the line to ERROR
    messages in pds.html regarding the one you cite.



    On Fri, 15 Oct 2010, Fatih Sevim wrote:

    I want to calculate power density spectrum via "PDS" command but
    ı came up against "ERROR 5003: No correlation function calculated."
    I need your help.

    Best regards,
    Fatih.
06:21:12 v.ad6b513c