i am running the below python script for PSSD plot. and getting metadata error.
please suggest where i am wrong. i am making my dataless.seed file from PCCD software.
SCRIPT
from obspy import read
from obspy.signal import PPSD
from obspy.imaging.cm import pqlx
from obspy.io.xseed import Parser
st = read(“IN.ZIRO…SHZ.D.2020.092.000051.SAC”)
parser = Parser(“station.xml”)
ppsd = PPSD(st[0].stats, metadata=parser)
ppsd.add(st)
st = read(“IN.ZIRO…SHZ.D.2020.092.000051.SAC”)
ppsd.add(st)
ppsd.plot(cmap=pqlx)
and Error file
/home/sanjay/anaconda2/envs/obspy/lib/python3.7/site-packages/obspy/signal/spectral_estimation.py:968: UserWarning: Error getting response from provided metadata:
AttributeError: ‘str’ object has no attribute ‘format_seed’
Skipping time segment(s).
warnings.warn(msg)
Traceback (most recent call last):
File “probabilistic_power_spectral_density2.py”, line 15, in
ppsd.plot(cmap=pqlx)
File “/home/sanjay/anaconda2/envs/obspy/lib/python3.7/site-packages/obspy/signal/spectral_estimation.py”, line 1905, in plot
self.__check_histogram()
File “/home/sanjay/anaconda2/envs/obspy/lib/python3.7/site-packages/obspy/signal/spectral_estimation.py”, line 816, in __check_histogram
raise Exception(msg)
Exception: No data accumulated