Thread: Re: y log scale in the spectrogram plot

Started: 2012-12-28 22:11:54
Last activity: 2012-12-28 22:11:54
Topics: SAC Help
Aderson Nascimento
2012-12-28 22:11:54
Hi Milton,

sorry I was not clear in my last email. I want to change the y axis to log
scale...
ymin and ymax will indeed change the linear scale of the amplitudes.
Apologies for the confusion.

Aderson

--
Aderson Farias do Nascimento
Universidade Federal do Rio Grande do Norte
Department of Geophysics
UFRN - Campus Universitário, 3000- Lagoa Nova
Cep 59072-970 - Natal RN - Brasil
http://lattes.cnpq.br/8600906973888297


2012/12/28 Milton Plasencia <mpplasencia<at>gmail.com>

Hi Aderson,

See the help spectrogram,

the default values are:
SPECTROGRAM WINDOW 2 SLICE 1 METHOD MEM ORDER 100 NOSCALING YMIN 0 YMAX
FNYQUIST COLOR

So, you can modify the scale with YMIN and YMAX values.

HTH,

Milton


* * * * * * * * * * * * * * * * * * * * * * *
Milton P. PLASENCIA LINARES

Centro di Ricerche Sismologiche (CRS)
Istituto Nazionale di Oceanografia e di Geofisica Sperimentale - OGS

Borgo Grotta Gigante 42/C
(34010) Sgonico - TRIESTE - ITALIA
Tel: +39 040 2140 141 (Udine)
Tel: +39 040 2140 365 / 256 (Trieste)
Fax: +39-040-327307

E-mail: mplasencia<at>inogs.it

ASAIN (Antarctic Seismographic Argentinean Italian Network)
*********************************







On Dec 28, 2012, at 5:47 PM, Aderson Farias do Nascimento <
nascimentoafd<at>gmail.com> wrote:

Dear SACers,

does anybody know how to change the y axis (frequency) scale of the
spectrogram plot?

Best regards to all,

Aderson

Aderson Farias do Nascimento
Universidade Federal do Rio Grande do Norte
Department of Geophysics
http://lattes.cnpq.br/8600906973888297
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